August 2027 bike rides & races

Dates

Sun, Aug 1, 2027 · projected (2026 was Aug 2)

Where

Boone, NC

Distances

Gran ~80 mi; Medio ~55 mi; Piccolo ~25 mi

Format

timed-segment gran fondo

Cause

Watauga Pioneers NICA mountain bike team

Organizer

Gran Fondo National Series

Registration

2026 open; 2027 not posted

Date2026 edition was Sun Aug 2, 2026 (first Sunday of August); 2027 projected as the same weekend pattern = Sun Aug 1, 2027. Organizer has not published a 2027 date yet.

Event siteSources: granfondonationalseries.com granfondonationalseries.com

Dates

Sun, Aug 1, 2027 · projected (2026 was Aug 2)

Where

Littleton (Waterton Canyon) or Durango, CO

Distances

~540 mi / ~70,000 ft on the Colorado Trail (bike detours around wilderness); free, no entry, no support

Format

self-supported race on the Colorado Trail

Organizer

Jefe Branham

Registration

No formal registration

Qualification

None; self-supported ITT rules

Date2026 grand depart Sun Aug 2, 2026, 4am from Waterton Canyon (Littleton) toward Durango. The race starts on a late-July/early-August Sunday and alternates direction yearly, so 2027 is projected as Sun Aug 1, 2027, likely Durango-to-Denver. Not yet announced.

Event siteSources: bikepacking.com

Dates

Sun, Aug 1, 2027 · projected (2026 was Aug 2)

Where

Kankakee, IL

Distances

Routes 19 to 101 mi (pairings 18-100 mi)

Elevation

flat

Format

club century

Organizer

Kankakee River Bike Club

Registration

2026: $35 by 7/30, $40 after; via BikeReg

DateProjected: 1st Sunday of August (2026 edition Sunday Aug 2, 2026). No 2027 date published.

Event siteSources: tworiverscentury.com

Dates

Sat, Aug 7, 2027 · projected (2026 was Aug 8)

Where

Pocatello, ID

Distances

82 miles

Elevation

7,800 ft total elevation gain

Format

gran fondo

Organizer

Pocatello-area organizers

Registration

2027 registration not yet open as of Sept 2026

DateNo 2027 date published. The 2026 edition was Sat Aug 8, 2026; the ride is held on an early-August Saturday, so Sat Aug 7, 2027 is the projection.

NotesSoutheast Idaho gran fondo climbing four named peaks/passes around Pocatello.

Event siteSources: cyclingwest.com

Dates

Sat, Aug 7 – Sun, Aug 8, 2027 · projected (2026 was Aug 1–2)

Where

Biddeford, ME

Route

University of New England, Biddeford → Biddeford

Format

Bike MS ride (two-day)

Cause

MS — National Multiple Sclerosis Society

Min. fundraising

Not published yet

Organizer

National MS Society

DateProjected to Aug 7-8, 2027.

CheckNot checked with the organizer yet. Look at their site before you plan around it.

Event siteSources: bikenewengland.com

Dates

Sat, Aug 7, 2027 · projected (2026 was Aug 1)

Where

Winter Park, CO

Distances

67 mi / 5,600 ft (plus shorter option)

Format

high-altitude gravel race

Organizer

Gemini Adventures

Registration

Not open.

Lottery

No lottery.

Date2026 edition Aug 1, 2026 (first Saturday of August) -> Aug 7, 2027 projected; not announced.

Event siteSources: gravelgodcycling.com

Dates

Sat, Aug 7, 2027

Where

San Diego (La Jolla), CA

Route

UC San Diego (RIMAC Field) → UC San Diego

Distances

25, 55, 75 mi coastal routes; 5K walk, 10K run; group classes; virtual

Format

cancer one-day ride (+5K/10K)

Cause

Cancer — Curebound - San Diego cancer research collaborations (all funds raised)

Min. fundraising

Not published yet

Organizer

Curebound

Registration

2027 save-the-date posted; registration TBA

DateOfficial site: 'Save the Date for the 2027 Curebound Cancer Challenge on Saturday, August 7'. 2026 edition was Aug 1, 2026.

NotesPadres Pedal the Cause 'will expand and become the Curebound Cancer Challenge with all new coastal routes' (site meta description).

Event siteSources: curebound.org bikesignup.com

Dates

Sat, Aug 7, 2027 · projected (2026 was Aug 1)

Where

Dodgeville, WI

Distances

50K, 100K, 150K, 200K

Elevation

very hilly (Driftless)

Format

hilly Driftless challenge ride

Organizer

Race Day Events

Registration

2026 registration closed

DateProjected: 1st Saturday of August (2026 edition Saturday Aug 1, 2026). No 2027 date published.

NotesStart Harris Park.

Event siteSources: dairylanddare.com dairylanddare.com

Dates

Sat, Aug 7, 2027 · projected (2026 was Aug 1)

Where

Embarrass (Iron Range), MN

Distances

6 to 46 mi round trip (four options)

Elevation

rolling

Format

paved rail-trail tour

Cause

Bike advocacy — Mesabi Trail

Organizer

Mesabi Trail / Club Mesabi

Registration

2026: $55 adult, $10 first kid

DateProjected: 1st Saturday of August (2026 edition Saturday Aug 1, 2026). No 2027 date published.

Event siteSources: mesabitrail.com

Dates

Sat, Aug 7, 2027

Where

Novato, CA

Distances

37 (Geronimo), 64 (metric), 94 (Mt. Tam), 102 (century), 127 mi (double metric)

Elevation

2,300 / 4,300 / 8,900 / 6,600 / 11,000 ft

Format

club century (Mt. Tam / Tomales Bay); double-metric option

Cause

Community — Local community groups

Organizer

Marin Cyclists

Registration

2027 not yet open; 2026 pricing $105-$175; 2,500-rider cap

Datemarincentury.com: 'see you back at Stafford Lake Park on Saturday, August 7, 2027'.

NotesThe 200-mile Mt. Tam Double Century is no longer on the route list (see defunct).

Event siteSources: marincentury.com granfondoguide.com

Dates

Sat, Aug 7 – Sun, Aug 8, 2027

Where

Wellesley / Worcester / Bourne, MA

Route

Wellesley or Worcester (Sat); Bourne or Wellesley (Sun) → Bourne (Sat); Provincetown or Wellesley (Sun)

Distances

14 route combinations, 25-177 mi (e.g., 177 Worcester-Provincetown, 162 Wellesley-Provincetown, 100 Worcester-Bourne, 85 Wellesley-Bourne, 77 Bourne-Provincetown, 25/50 Wellesley loops)

Format

cancer two-day ride (one-day options)

Cause

Cancer — Dana-Farber Cancer Institute / Jimmy Fund (100% of rider-raised dollars)

Min. fundraising

$2,000-$6,000 by route (2026 chart: $6,000 two-day/Sunday Provincetown routes; $5,000 two-day Bourne+loop; $4,000 one-day Sat to Bourne; $2,000 Wellesley loops, $1,000 ages 13-17)

Organizer

Pan-Mass Challenge

Registration

2027 rider registration opens Jan 7 (Heavy Hitters), Jan 11 (alumni), Jan 14, 2027 (general public); volunteer reg Feb 17/24, 2027

DatePMC calendar lists 'PMC 2027: August 7 & 8' (Sat-Sun). 2026 edition was Aug 1-2, 2026.

NotesLargest single-event athletic fundraiser in the US ($79M goal in 2026; 6,500+ riders). PMC Unpaved (gravel, Berkshires) is a separate fall event (Oct 3, 2026). PMC Winter Cycle is indoor (excluded).

Event siteSources: pmc.org pmc.org

Dates

Sat, Aug 7 – Sun, Aug 8, 2027

Where

Columbus, OH

Route

Columbus / New Albany → New Albany / Kenyon College (Gambier) / Columbus

Distances

17, 23, 46, 66, 100 mi (Sat); 27 mi (Sun); two-day 131 or 165 mi

Format

cancer one/two-day ride

Cause

Cancer — The Ohio State University Comprehensive Cancer Center - James (100% of participant-raised funds)

Min. fundraising

$1,250 (17/23/27 mi), $1,500 (46 mi), $2,000 (66/100 mi), $3,000 (two-day)

Organizer

Pelotonia

Registration

2027 registration opening date not yet posted on pelotonia.org (checked Oct 1, 2026; the page says details will be added).

DatePelotonia ride-weekend page lists 2027: August 7-8 (opening ceremony Aug 6). 2026 was Aug 1-2.

Notes7,500+ riders annually; min age 14 to ride.

Event siteSources: pelotonia.org my.pelotonia.org

Dates

Sat, Aug 7, 2027 · projected (2026 was Aug 8)

Where

La Veta, CO

Distances

25, 50 and 102 miles

Elevation

Up to ~8,000 ft of climbing on the 102-mile route

Format

century

Organizer

Local La Veta / Huerfano County organizers

Registration

2027 registration not yet open as of Sept 2026

DateNo 2027 date published. The 2026 edition was Sat Aug 8, 2026; the ride is held on an early-August Saturday, so Sat Aug 7, 2027 is the projection.

NotesSouthern Colorado century through the Spanish Peaks country around La Veta and Cuchara.

Event siteSources: cyclingwest.com

Dates

Sat, Aug 7, 2027 · projected (2026 was Aug 8)

Where

Cascade / Pikes Peak Highway, Colorado Springs, CO

Distances

12.5 miles (20 km) full course; Midway Challenge 5.16 miles to Glen Cove

Elevation

Over 4,700 ft of climbing, finishing at the 14,115 ft Pikes Peak summit

Format

timed hill climb to a 14er summit

Cause

Colorado Springs Sports Corporation and its YES Program (youth sports access)

Organizer

Colorado Springs Sports Corporation

Registration

2027 registration not yet open as of Sept 2026. 2026 pricing: $70 early (through May 30), $75 standard (May 31-Aug 5), $85 day-of. Registration via BikeReg.

DateNo 2027 date published. The 2026 edition was Sat Aug 8, 2026; the race is held on an early-August Saturday, so Sat Aug 7, 2027 is the projection.

NotesSANCTIONED BY USA CYCLING and run as the Colorado Hill Climb State Championship under the Colorado Bicycle Racing Association, but it also offers non-competitive gran fondo, e-bike, hand cycle and Midway Challenge categories, so the mass-participation side fits this list. Start is about 7 miles up the Pikes Peak Highway from the Gateway, just past Crystal Reservoir.

Event siteSources: coloradospringssports.org granfondoguide.com

Dates

Sat, Aug 7, 2027

Where

Big Bear Lake (Bear Mountain Resort), CA

Distances

25 mi (+1,331 ft), 50 (+2,938), 70 (+4,744), 100 mi (+8,497 ft); family ride; gravel/MTB companions

Elevation

up to 8,497 ft; event at ~7,000 ft

Format

high-altitude gran fondo with chip timing and KOM/QOM

Cause

Community — Big Bear Cycling Association programs

Organizer

Big Bear Cycling Association (501c4)

Registration

Open; has sold out early for 16 straight years

Datetourdebigbear.com and ACTIVE listing: Saturday August 7, 2027 (price tiers through Aug 2, 2027).

Event siteSources: tourdebigbear.com active.com

Dates

Sat, Aug 7, 2027 · projected (2026 was Aug 1)

Where

Minnetonka, MN

Distances

16, 30, 36, 47, 65, 100 mi

Elevation

rolling

Format

community ride (up to 100 mi)

Cause

Children — ICA Food Shelf; Minnetonka Community Education

Organizer

Minnetonka Community Education (director Tim Litfin)

DateProjected: organizer states the ride is the first Saturday in August (2026 edition Saturday Aug 1, 2026), giving Aug 7, 2027.

Notes~3,500 riders annually.

CheckNot checked with the organizer yet. Look at their site before you plan around it.

Event siteSources: bikemn.org granfondoguide.com

Dates

Sat, Aug 7, 2027 · projected (2026 was Aug 8)

Where

Tannersville, NY

Distances

27, 52 and 74/75 miles (Devil's Kitchen: 1,350 ft in <3 mi, grades to 22%)

Format

gran fondo with Devil's Kitchen climb

Organizer

Anthem Sports Tours

Registration

Not yet open

Date2026 edition Aug 8, 2026 (19th annual). Note the ordinal pattern (2nd Saturday) would give Aug 14, 2027.

NotesSame organizer as Tour of the Battenkill (mixed-surface, May 8, 2027 unconfirmed).

CheckNot checked with the organizer yet. Look at their site before you plan around it.

Event siteSources: strambecco.com granfondoguide.com

Dates

Sun, Aug 8, 2027 · projected (2026 was Aug 9)

Where

Cottage Grove / Linn County, Willamette Valley, OR

Distances

23, 44, 68, 85 and 100 miles

Elevation

Mostly flat to rolling Willamette Valley farmland

Format

century

Organizer

Mid-Valley Bicycle Club (MVBC)

Registration

2027 registration not yet open as of Sept 2026; 2026 registration opened April 2026 with early-bird pricing through May 31

DateNo 2027 date published. The 47th annual edition was Sun Aug 9, 2026; the ride is held on an early-August Sunday, so Sun Aug 8, 2027 is the projected date.

NotesRiders cross up to five historic covered bridges; complimentary root beer floats at the finish. 47th annual edition ran in 2026. Registration via BikeReg.

Event siteSources: mvbc.com bikereg.com

Dates

Sun, Aug 8, 2027

Where

Portland, OR

Distances

Multiple ride options including the Fremont Express and a 6-Bridge Challenge; also a 5-mile walking 'Stride' and a free Kids Pedal

Elevation

Bridge ramps only; otherwise flat

Format

car-free bridge ride

Cause

Providence (health system) community programs

Organizer

Providence

Registration

Not yet open; the organizer says to check back beginning March 2027 to register

DateThe official Providence Bridge Pedal page announces the 31st annual event for Sunday, August 8, 2027, and says details/registration post in March 2027. Portland Bicycling Club's event calendar independently lists Providence Bridge Pedal on Aug 8, 2027.

NotesPortland's signature mass-participation ride - riders cross Willamette River bridges normally closed to bikes, including the upper decks of the Fremont and Marquam. Non-competitive. 2026 was the 30th anniversary (Aug 9, 2026); 2027 is the 31st.

Event siteSources: providence.org providence.org

Dates

Sat, Aug 14, 2027 · projected (2026 was Aug 15)

Where

Brewer, ME

Route

Brewer, ME → Lincoln, ME (and back)

Distances

12, 26.6, 50, 75, 101 mi bike; 1K/5K/10K walk-run

Format

cancer one-day ride/run/walk

Cause

Cancer — Northern Light Cancer Care

Min. fundraising

Not published yet

Organizer

Northern Light Health

DateProjected to Sat Aug 14, 2027.

NotesRegional event.

CheckNot checked with the organizer yet. Look at their site before you plan around it.

Event siteSources: bikenewengland.com

Dates

Sat, Aug 14, 2027 · projected (2026 was Aug 8)

Where

Red River, NM

Distances

85 mi and 100 mi century

Format

high-altitude loop from Red River (The Ride Collective)

Organizer

The Ride Collective

Registration

2026 open

Date2027 projected Aug 14; organizer has not posted 2027.

Event siteSources: theridecollective.com cyclingwest.com

Dates

Sat, Aug 14, 2027 · projected (2026 was Aug 8)

Where

Lamoille (Elko), NV

Distances

12 mi

Elevation

3,000 ft

Format

12-mile / 3,000 ft climb in the Ruby Mountains (Elko Velo)

Organizer

Elko Velo

Date2026 edition Sat Aug 8, 2026 (2nd Saturday of August). 2027 projected Aug 14.

Event siteSources: cyclingwest.com

Dates

Sat, Aug 14, 2027

Where

Leadville, CO

Distances

~100 miles, 12,000+ ft climbing (out-and-back)

Format

100-mile high-altitude MTB race

Cause

Charity entry partners: Leadville Trail 100 Legacy Foundation, Life Time Foundation, Challenged Athletes Foundation, Livestrong, Colorado High School Cycling League, Cloud City Wheelers, Chris Klug Foundation, Colorado Outward Bound School, First Descents

Organizer

Life Time (Leadville Race Series)

Series

Life Time Grand Prix (round 3); Leadville Race Series

Registration

Lottery Dec 1–15, 2026; all applicants notified January 2027. 2027 pricing not yet posted (2026: $525–$625). 18+ on race day. Camp + Entry packages open Dec 1, 2026 (2026 price reference $2,200). Life Time member guaranteed spots from Nov 24, 2026. Coaching + entry via Boundless.

Lottery

Yes — lottery open 12/1/26–12/15/26, results January 2027. Qualifier events (min. 35 coins each): Sea Otter Fuego XL, Lutsen 99er, Silver Rush 50 MTB, Leadville Stage Race, Little Sugar MTB, Austin Rattler MTB; also Tahoe Trail (2 laps under 8h15).

DateOrganizer page lists race date August 14, 2027 (Saturday). 2026 edition was Aug 15, 2026.

Notes'Race Across the Sky'. Individual or tandem entries only. 2027 schedule 'subject to change'.

Event siteSources: leadvilleraceseries.com leadvilleraceseries.com

The town

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SleepHotels in Leadville4 picks · ask about the bike when you book EatRestaurants in Leadville6 picks, night before and after FixBike shops in Leadville2 shops · 2 rent bikes

The Leadville town guide →

Dates

Sat, Aug 14, 2027 · projected (2026 was Aug 8)

Where

Waterville (Toledo), OH

Distances

30.5 and 64 mi road; 20 and 42 mi gravel

Elevation

flat

Format

metric century + gravel

Cause

The Right Direction

Organizer

Toledo Area Bicyclists

Registration

Min $25 donation

DateProjected: 2nd Saturday of August (2026 edition Saturday Aug 8, 2026). No 2027 date published.

Notes32nd annual in 2026; start Buffalo Rock Brewing.

Event siteSources: bikesignup.com

Dates

Sat, Aug 14, 2027 · projected

Where

Beaufort County (Bayboro/Washington area), NC

Distances

24-hour non-drafting time trial (RAAM qualifier) and 12-hour drafting race

Format

24-hour non-drafting (RAAM qualifier) and 12-hour drafting timed races

Organizer

Mid-Atlantic Ultra (same organizers as Psycho 48)

Registration

Not yet open for 2027

Qualification

Open entry; 24-hour is a RAAM qualifier

Date2027 projected to Sat Aug 14, 2027.

Sources: ultracycling.com ultracycling.com

Dates

Sat, Aug 14, 2027

Where

Seattle, WA

Route

University of Washington, Seattle → Gas Works Park, Seattle

Distances

25, 50, 100 mi (bike); 5K walk/run; virtual option

Format

cancer one-day ride (+5K walk/run)

Cause

Cancer — Fred Hutch Cancer Center (100% of participant-raised dollars)

Min. fundraising

$1,250 riders 25+; $500 riders 18-24 (2026)

Organizer

Fred Hutch Cancer Center

Registration

2026 fundraising closes Sep 30, 2026; 2027 registration expected spring 2027 (2026 reg opened Apr 9, 2026)

DateOfficial site: 'Save the date for Obliteride 2027' - Saturday, August 14, 2027. 2026 edition was Aug 8, 2026. (Third-party listings showing Aug 7 or Aug 8, 2027 are auto-projections and are wrong.)

NotesRecord $8.0M raised in 2025.

Event siteSources: obliteride.org obliteride.org

The town

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Dates

Sat, Aug 14, 2027 · projected (2026 was Aug 8)

Where

Tabiona, UT

Distances

25, 50, 75, 100, 150 mi

Format

Uinta Basin ride, 25-150 mi

Organizer

To the Moon and Back Events

Date2026 edition Sat Aug 8, 2026 (Tabiona) (2nd Saturday of August). 2027 projected Aug 14.

Event siteSources: cyclingwest.com

Dates

Sat, Aug 14, 2027 · projected (2026 was Aug 15)

Where

Mountain Rest (SC start) to Alabama line, GA

Distances

355 mi (571 km), ~72% unpaved; free, no podium/prizes but times recorded

Format

self-supported 'adventure' across north Georgia

Organizer

Derek Kozlowski and Mike Honcho

Registration

No fee

Qualification

None (self-supported)

Date2026 grand depart Sat Aug 15, 2026, 8am from Mountain Rest, SC (Chattooga River). Held on a mid-August Saturday; 2027 projected Sat Aug 14, 2027. Not yet announced.

Event siteSources: bikepacking.com

Dates

Sat, Aug 14, 2027 · projected (2026 was Aug 15)

Where

West Windsor (Ascutney Outdoors), VT

Distances

~55 mi / 7,000 ft with 8 class-4 sectors

Format

class-4 road gravel race

Cause

Community

Organizer

Vermont Overland (Peter Vollers)

Registration

Opens Jan 1, 2027 (expected); 1,000-rider cap.

Lottery

No lottery.

Date2026 edition Aug 15, 2026 (third Saturday of August); 2027 not announced -> Aug 14, 2027 projected. Registration traditionally opens Jan 1 at 9 AM (Movemint) and sells out in hours.

NotesFounded 2009.

Event siteSources: gravelgodcycling.com

Dates

Sun, Aug 15, 2027 · projected (2026 was Aug 16)

Where

Anchorage, AK

Distances

1,056 mi (1,700 km), ~50% gravel, Anchorage to Deadhorse (Dalton Highway)

Format

1,056-mile unsupported bikepacking/ultra (Anchorage to Deadhorse)

Organizer

Transbike Adventures (Alaska)

Registration

2027 TBA

Qualification

Open entry

Date2026 edition Aug 16, 2026 (Sunday) from Anchorage; 2027 projected to the equivalent mid-August Sunday (Aug 15, 2027). Not yet announced.

Event siteSources: ultracycling.com bikepacking.com

Dates

Sun, Aug 15, 2027 · projected (2026 was Aug 16)

Where

Swartz Creek, MI

Distances

20, 34, 56, 66, 100 mi road; 40 and 64 mi gravel

Elevation

rolling

Format

club century + gravel

Organizer

Genesee Wanderers Bicycle Club

Registration

Registration required (geneseewanderers.clubexpress.com / BikeSignup)

DateProjected: 3rd Sunday of August every year since 1980 (2026 edition Sunday Aug 16, 2026). Organizer has not published.

NotesOfficial DALMAC training ride.

Event siteSources: biketcba.org granfondoguide.com

Dates

Sun, Aug 15 – Fri, Aug 20, 2027

Where

Breckenridge, CO

Distances

6 stages (~240 mi / 40,000 ft) or 3-day option

Format

6-day (and 3-day) backcountry MTB stage race

Organizer

Breck Epic LLC (Mike McCormack)

Registration

Open on BikeReg (the site's EPICFAN2027 promo code ran through Aug 17, 2026).

Lottery

No lottery mentioned on the organizer site.

DateOrganizer site (breckepic.com, checked Oct 1, 2026): 'AUG 15-20, 2027'.

Event siteSources: breckepic.com

Dates

Sun, Aug 15, 2027

Where

Omaha, NE

Distances

10, 25, 42 mi (Gran Fondo timed) plus 44-mi gravel

Elevation

rolling

Format

largest one-day ride in Nebraska; includes timed 42-mi Gran Fondo

Cause

Bike advocacy — Eastern Nebraska Trails Network

Organizer

Bob Mancuso Jr. / CCC Committee

Registration

2027 registration open (company, club, individual, gran fondo divisions); cap ~3,000

DateOrganizer site lists Sunday, August 15, 2027 (37th annual); 2026 edition was Aug 16, 2026.

NotesStart Capitol District, 11th & Capitol.

Event siteSources: showofficeonline.com granfondoguide.com

Dates

Sun, Aug 15, 2027 · projected (2026 was Aug 16)

Where

Lancaster County, PA

Distances

17, 31, 54, 66 and 100 miles; seven start locations

Format

club century (covered bridges)

Cause

Lancaster Bicycle Club grant program (covered-bridge restoration, bike initiatives)

Organizer

Lancaster Bicycle Club

Registration

$50 all routes (2026)

Date2026 edition was Sun Aug 16, 2026 (third Sunday of August); 2027 projected as the same weekend pattern = Sun Aug 15, 2027. Organizer has not published a 2027 date yet.

Notes47th annual in 2026.

Event siteSources: coveredbridgeclassic.com bikereg.com

Dates

Sun, Aug 15, 2027 · projected (2026 was Aug 16)

Where

Lexington, MA

Distances

5, 15.8, 32.6, 64.5, 100 mi

Format

diabetes one-day ride

Cause

Diabetes — American Diabetes Association

Min. fundraising

Not published yet

Organizer

American Diabetes Association

DateProjected to Sun Aug 15, 2027.

CheckNot checked with the organizer yet. Look at their site before you plan around it.

Event siteSources: bikenewengland.com

Dates

Mon, Aug 16 – Sun, Aug 22, 2027

Where

Olympic Peninsula loop, WA

Distances

not listed

Format

MS multi-day/multi-week self-contained charity tour

Cause

MS — Bike the US for MS (MS research and community-service projects)

Min. fundraising

Organizer requires per-mile fundraising

Organizer

Bike the US for MS

Registration

2027 routes listed

Date2027 dates published on the Bike the US for MS routes page.

NotesSmall-group, self-contained charity tours.

Event siteSources: biketheusforms.org

Dates

Sat, Aug 21, 2027 · projected (2026 was Aug 15)

Where

Ventura (Museum of Ventura County), CA

Distances

Five routes up to 100 mi ('Popsicles on the Rincon')

Format

Ventura coastal century (Channel Islands Bicycle Club)

Cause

Various charities

Organizer

Channel Islands Bicycle Club

Date2026 edition Sat Aug 15, 2026 (Ventura County Coast listing); 2025 was Aug 16. Pattern = third Saturday of August, giving Aug 21, 2027. Organizer site (coolbreezecentury.com) redirect-looped.

Event siteSources: venturacountycoast.com cibike.org

Dates

Sat, Aug 21, 2027 · projected (2026 was Aug 22)

Where

Greenfield (Franklin County Fairgrounds), MA

Distances

180K (~115 mi / 13,000 ft), 160K, 115K, 100K and shorter options

Format

non-competitive dirt-road randonnée / land-trust fundraiser

Cause

Franklin Land Trust

Organizer

Franklin Land Trust

Registration

Not open.

Lottery

No lottery.

Date2026 edition Aug 22, 2026 (new Greenfield fairgrounds start). Fourth-Saturday-of-August pattern -> Aug 21, 2027 projected; not announced.

NotesNo prizes or race-style results by design.

Event siteSources: gravelgodcycling.com

Dates

Sat, Aug 21, 2027

Where

Charlotte, MI

Distances

~50 mi

Format

Michigan gravel race

Organizer

Fast Fitty

Lottery

No lottery.

Event siteSources: gravelcalendar.com gravelcalendar.com

Dates

Sat, Aug 21, 2027 · projected (2026 was Aug 15)

Where

Gorham/Pinkham Notch, NH

Distances

7.6 miles one-way, all uphill to 6,288 ft summit

Elevation

~4,700 ft gain; avg grade 12%, max 22%

Format

mountain hill climb (7.6 mi, avg 12%)

Cause

Tin Mountain Conservation Center environmental education programs

Organizer

Tin Mountain Conservation Center

Registration

2027 registration not yet open (general registration historically opens mid-January)

Qualification

Open entry (fills quickly); top-notch wave by qualifying time

Date2026 edition was Sat Aug 15, 2026 (third Saturday of August); 2027 projected as the same weekend pattern = Sat Aug 21, 2027. Organizer has not published a 2027 date yet. Rain date is the following Sunday. 2026 was the 53rd edition (Aug 15, 2026; rain date Aug 16).

NotesField-limited (~600); the 'Newton's Revenge'/Early Bird July event is the only other day bikes are allowed on the Auto Road.

Event siteSources: mwarbh.org mwarbh.org

The town

Once you’re in Gorham

SleepHotels in Gorham3 picks · ask about the bike when you book EatRestaurants in Gorham4 picks, night before and after FixBike shops in Gorham2 shops · 1 rents bikes

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Dates

Sat, Aug 21 – Sun, Aug 22, 2027 · projected (2026 was Aug 22–23)

Where

Seattle, WA to Vancouver, BC, WA

Distances

~188 miles over two days

Format

two-day international tour

Cause

Cascade Bicycle Club

Organizer

Cascade Bicycle Club

Registration

2027 registration not yet open as of Sept 2026

DateNo 2027 date published. 2026 was Aug 22-23, 2026; projecting the corresponding late-August weekend in 2027 = Aug 21-22, 2027. Cascade typically runs two back-to-back departures (RSVP1/RSVP2) in some years.

NotesSTARTS IN THE US (Seattle) BUT FINISHES IN CANADA (Vancouver, BC). Riders need a passport/border documentation. Included per instructions with the cross-border note.

Event siteSources: cascade.org cascade.org

Dates

Sat, Aug 21, 2027 · projected (2026 was Aug 15)

Where

Richfield, UT

Distances

37, 62, 100 mi

Format

central Utah century

Organizer

Rooster Ride

Date2026 edition Sat Aug 15, 2026 (Richfield) (3rd Saturday of August). 2027 projected Aug 21.

Event siteSources: cyclingwest.com

Dates

Sat, Aug 21, 2027 · projected (2026 was Aug 22)

Where

Steamboat Springs, CO

Distances

Road routes of roughly 26, 46 and 66 miles (longer 100+ mile options in some years); a 112-mile Lynx Pass gravel route was added for the 21st edition

Elevation

Moderate to sustained mountain climbing in the Yampa Valley; routes cross Rabbit Ears and/or Gore Pass in longer years

Format

mountain-pass ride with charity distribution

Cause

Various charities — Steamboat-area community nonprofits - more than $1.5 million donated since 2005

Organizer

Tour de Steamboat / Routt County Riders (2026 co-ride directors Garett Mariano and Scott Weeks)

Registration

2027 registration not yet open as of Sept 2026

DateThe 21st edition ran Sat Aug 22, 2026; the ride is held on a late-August Saturday, so Sat Aug 21, 2027 is consistent.

NotesRIDER CAP 1,200. Returned in 2026 for its 21st year after a hiatus. A 112-mile Lynx Pass gravel route was added alongside the road routes (the gravel option falls outside this road category).

Event siteSources: tourdesteamboat.com granfondoguide.com

The town

Once you’re in Steamboat Springs

SleepHotels in Steamboat Springs4 picks · ask about the bike when you book EatRestaurants in Steamboat Springs5 picks, night before and after FixBike shops in Steamboat Springs4 shops · 4 rent bikes

The Steamboat Springs town guide →

Dates

Sat, Aug 21, 2027 · projected (2026 was Aug 15)

Where

Whidbey Island (Coupeville / Oak Harbor area), WA

Distances

100.4, 66.2, 49.1, 35.8 and 11.3 miles

Elevation

6,844 ft (100mi); 4,485 ft (66mi); 3,288 ft (49mi); 1,762 ft (36mi)

Format

island century

Cause

Health — WhidbeyHealth Hospital and Clinics

Organizer

WhidbeyHealth Foundation

Registration

2027 registration not yet open as of Sept 2026; 2026 used https://secure.qgiv.com/for/3kyui6/event/tdw2026/ and allowed in-person day-of registration

DateNo 2027 date published. 2026 was Sat Aug 15, 2026; projecting the corresponding mid/late-August Saturday in 2027.

NotesNamed routes: South Island Stretch (100mi), Langley Loop (66mi), Freeland Fondo (49mi), North Ender (36mi), Fort Casey Slow-roll (11mi). Proceeds benefit the local hospital but the event's identity is a century ride.

Event siteSources: whidbeyhealthfoundation.org business.oakharborchamber.com

Dates

Sat, Aug 21, 2027 · projected (2026 was Aug 15)

Where

Salt Lake City, UT

Distances

50 and 100 mi

Format

revived Tour of Utah-era mass-participation ride

Organizer

Salt Lake Criterium

Date2026 edition Sat Aug 15, 2026 (50/100 mi) organized by Salt Lake Criterium (3rd Saturday of August). 2027 projected Aug 21. The original Tour of Utah Ultimate Challenge ended with the Tour of Utah (see defunct).

Event siteSources: cyclingwest.com

Dates

Sun, Aug 22, 2027 · projected

Where

Cascade / Manitou Springs, CO

Distances

12.42-mi timed hill climb on the Pikes Peak Highway (Crystal Reservoir to summit) plus gran fondo distance from the gateway

Format

hill climb to the 14,115-ft summit

Organizer

Pikes Peak Cycling Hill Climb organizers

Qualification

Open entry (timed and fun-ride waves); USAC categories in some years

DateHeld on the fourth Sunday of August (Aug 25, 2024; Aug 24, 2025); 2027 projected Sun Aug 22, 2027. Not yet announced.

Dates

Sun, Aug 22, 2027 · projected (2026 was Aug 23)

Where

Fincastle, VA

Distances

Valley 33 mi (1,800 ft); River 43 mi (2,900 ft); Mountain 75 mi (6,400+ ft)

Elevation

6,400+ ft (Mountain)

Format

gran fondo (GFNS partner event)

Organizer

Muddy Squirrel

Date2026 edition was Sun Aug 23, 2026 (fourth Sunday of August); 2027 projected as the same weekend pattern = Sun Aug 22, 2027. Organizer has not published a 2027 date yet.

NotesGFNS points-earning partner event.

Event siteSources: strambecco.com granfondonationalseries.com

Dates

Mon, Aug 23, 2027 · projected (2026 was Aug 24)

Where

Bozeman, MT

Distances

915 mi (1,473 km)

Format

self-supported Montana gravel/bikepacking race

Organizer

Big Sky Spectaculaire organizers

Qualification

None (self-supported)

Date2026 start Aug 24, 2026 (Mon) from Bozeman (bikepacking.com listing). 2027 projected to the equivalent date (Aug 23, 2027); not yet announced.

Sources: bikepacking.com

Dates

Mon, Aug 23 – Fri, Sep 24, 2027

Where

Seattle, WA

Route

Seattle, WA → San Diego, CA

Distances

Approx. 1,800 mi historically

Format

MS multi-day/multi-week self-contained charity tour

Cause

MS — Bike the US for MS (MS research and community-service projects)

Min. fundraising

Organizer requires per-mile fundraising

Organizer

Bike the US for MS

Registration

2027 routes listed

Date2027 dates published on the Bike the US for MS routes page.

NotesSmall-group, self-contained charity tours.

Event siteSources: biketheusforms.org

The town

Once you’re in Seattle

SleepHotels in Seattle5 picks · ask about the bike when you book EatRestaurants in Seattle6 picks, night before and after FixBike shops in Seattle4 shops · 2 rent bikes

The Seattle town guide →

Dates

Wed, Aug 25 – Sun, Aug 29, 2027

Where

Lincoln (Sandhills Global Event Center), NE

Distances

Long Voyage GW300 (300 mi), GW150, GW75, GW35; runs 50K/half/10K/5K; gravel triathlon/duathlon (Aug 27)

Format

gravel race festival (150/300/75/35 + runs + gravel tri/du nationals)

Cause

Gravel Worlds Foundation (501c3; runs Aloha Gravel and community initiatives)

Organizer

Goodlife Adventures LLC

Series

Hosts USA Triathlon Gravel Tri/Du National Championships

Registration

2027 registration open now (Movemint); first-come.

Lottery

No lottery.

DateOfficial site: 'August 25–29, 2027'; registration open on Movemint. Flagship GW150 Saturday Aug 28, 2027; USA Triathlon Gravel Tri/Du National Championships Friday Aug 27, 2027 (Raymond, NE).

Notes$150K pro/elite purse in 2026; 'Captain of the Gravel Seas' pirate-sword trophies.

Event siteSources: gravelworlds.com movemint.cc

Dates

Thu, Aug 26 – Sun, Aug 29, 2027 · projected (2026 was Aug 27–30)

Where

Wichita Falls, TX

Distances

100-mile endurance ride plus shorter routes; 42-mile gravel grind; MTB races; trail runs

Format

mass-participation century (largest single-day 100-mile ride in the US); 4-day festival

Organizer

Hotter'N Hell Hundred / Wichita Falls Streams and Valleys

Registration

2026 via BikeReg (bikereg.com/hhh-2026)

Date2026 festival Thu-Sun Aug 27-30, 2026 (endurance ride Sat Aug 29). HHH is traditionally the Saturday nine days before Labor Day; for 2027 (Labor Day Sept 6) that is Sat Aug 28, 2027 with the festival Aug 26-29.

NotesTypically 10,000+ participants.

Event siteSources: wheelbrothers.com wheelbrothers.com

The town

Once you’re in Wichita Falls

SleepHotels in Wichita Falls6 picks · ask about the bike when you book EatRestaurants in Wichita Falls6 picks, night before and after FixBike shops in Wichita Falls2 shops for repairs

The Wichita Falls town guide →

Dates

Sat, Aug 28, 2027 · projected (2026 was Aug 22)

Where

Cleveland, OH

Distances

10, 30, 60 mi

Elevation

flat/rolling

Format

advocacy-org fondo

Cause

Bike advocacy — Bike Cleveland

Organizer

Bike Cleveland

Registration

2026: $25-$57 adult, $10 youth

DateProjected: 4th Saturday of August (2026 edition Saturday Aug 22, 2026). No 2027 date published.

NotesStart Cleveland Metroparks Beach House (Edgewater).

Event siteSources: bikecleveland.org

Dates

Sat, Aug 28, 2027 · projected (2026 was Aug 29)

Where

Richmond, UT

Distances

35, 60, 100 mi

Format

Cache Valley century supporting adaptive cycling

Cause

Common Ground Outdoor Adventures

Organizer

Common Ground

Date2026 edition Sat Aug 29, 2026 (Richmond, UT) (last Saturday of August). 2027 projected Aug 28.

Event siteSources: cyclingwest.com

Dates

Sat, Aug 28, 2027 · projected (2026 was Aug 29)

Where

Lancaster County, PA

Distances

Ramble 10-20 mi; Piccolo 25-35; Medio 35-45; Gran 55-65 mi

Format

farm-to-table fondo (Wrenegade Sports)

Cause

Supports local farms

Organizer

Farm to Fork Fitness Adventures / Wrenegade Sports

Registration

2027 not yet posted

Date2026 edition was Sat Aug 29, 2026 (last Saturday of August); 2027 projected as the same weekend pattern = Sat Aug 28, 2027. Organizer has not published a 2027 date yet.

Notes2026 date Saturday Aug 29, 2026.

Event siteSources: farmtoforkfitness.com bellegrove.org

Dates

Sat, Aug 28, 2027 · projected (2026 was Aug 22)

Where

Sandy, UT

Distances

~90 mi with canyon variations

Format

Wasatch canyons climbing ride (~90 mi)

Organizer

Mi Duole

Date2026 edition Sat Aug 22, 2026 (Sandy) (4th Saturday of August). 2027 projected Aug 28.

Event siteSources: cyclingwest.com

Dates

Sat, Aug 28, 2027 · projected (2026 was Aug 29)

Where

St. Louis (Carondelet Park), MO

Distances

short and long night loops (not specified)

Elevation

rolling

Format

night ride

Organizer

Moonlight Ramble

Registration

2026: $40 rising to $60 ride night; youth $25

DateProjected: last Saturday of August (2026 edition Saturday Aug 29, 2026, 62nd year). No 2027 date published.

NotesOne of the oldest night rides in the US.

Event siteSources: moonlightramble.com bikesignup.com

Dates

Sat, Aug 28, 2027 · projected (2026 was Aug 22)

Where

Dunlap (Peoria), IL

Distances

13-mi trail, 20, 45, 65, 100 mi road; 55 mi gravel

Elevation

rolling

Format

club century (Peoria area)

Organizer

Illinois Valley Wheelm'n

DateProjected: 4th Saturday of August (2026 edition Saturday Aug 22, 2026). No 2027 date published.

Notes52nd annual in 2026. Peoria's signature club ride.

Event siteSources: ivwnobaloney.com

Dates

Sat, Aug 28, 2027 · projected (2026 was Aug 29)

Where

San Francisco, CA

Distances

40 and 150 mi

Format

40 / 150-mile Bay loop from Sports Basement Presidio

Date2026 edition Sat Aug 29, 2026 (last Saturday of August). 2027 projected Aug 28.

Event siteSources: cyclingwest.com

Dates

Sun, Aug 29, 2027 · projected (2026 was Aug 30)

Where

Eugene, OR

Distances

100 miles (Century), 75 miles (Wolf Creek Loop), 100 km (Metric Century), 40 miles (Crow Loop), plus a short Community Route

Elevation

Notable climbing on the century and Wolf Creek routes in the Coast Range foothills

Format

century

Organizer

Greater Eugene Area Riders (GEARs)

Registration

2027 registration not yet open as of Sept 2026. 2026: early-bird through May 24 ($85+ main routes, $35 community route); online registration closed Aug 28 at 8 pm; day-of registration accepted.

DateNo 2027 date published. The 2026 edition was Sun Aug 30, 2026 (last Sunday in August); last Sunday of August 2027 = Sun Aug 29, 2027.

NotesStart/finish at Alton Baker Park, Eugene. Registration via BikeReg (bikereg.com/blackberry-bramble). Contact blackberrybramble@eugenegears.org.

Event siteSources: theblackberrybramble.net theblackberrybramble.net

Dates

Sun, Aug 29, 2027 · projected (2026 was Aug 30)

Where

Wauconda, IL

Distances

25, 50, 75, 100 mi

Elevation

rolling

Format

club century

Cause

Bike advocacy

Organizer

Wheeling Wheelmen

Registration

2026: $30 early bird through July 24, up to $50 ride day (bikereg.com/harmon-100)

DateProjected: last Sunday of August (2026 edition Sunday Aug 30, 2026; ride avoids conflict with Bike the Drive on Labor Day weekend). No 2027 date published.

NotesStart Wauconda High School.

Event siteSources: wheelmen.com

Dates

Sun, Aug 29, 2027 · projected (2026 was Aug 30)

Where

Pittsburgh, PA

Distances

Multiple routes from short family loops up to ~62 miles (2026 tiers $20 youth–$200 premium)

Format

citywide mass ride with closed streets

Cause

BikePGH advocacy (all proceeds)

Organizer

BikePGH (501c3)

Registration

2026 closed; 2027 TBA

Date2026 edition was Sun Aug 30, 2026 (last Sunday of August); 2027 projected as the same weekend pattern = Sun Aug 29, 2027. Organizer has not published a 2027 date yet.

Notes'Western PA's biggest bike ride' (thousands of riders).

Event siteSources: pedalpgh.org bikepgh.org

Dates

Sun, Aug 29, 2027 · projected

Where

Stowe, VT

Distances

4.3 miles, 2,564 ft up the Mt. Mansfield Toll Road (avg ~11%)

Elevation

2,564 ft

Format

hill climb (Toll Road, road/MTB/run)

Cause

Catamount Trail Association

Organizer

Catamount Trail Association

Registration

Capped at 800 participants

DateEvent is traditionally the last Sunday of August.

NotesSponsored by Northeast Delta Dental.

CheckNot checked with the organizer yet. Look at their site before you plan around it.

Event siteSources: granfondoguide.com