# Running Races in Connecticut (2026)

> 262 upcoming running races across Connecticut — 5Ks, 10Ks, half marathons, marathons and ultras.

- **Page:** https://runthis.run/races/connecticut

## Races

- **[Riverfront East Hartford 5 Mile](https://runthis.run/event/rs-177029-riverfront-east-hartford-5-mile)** — Thu, Aug 27, 2026 · 12:00 AM UTC · East Hartford, CT · 4.0 mi
- **[2026 Killingworth Road Race 4 Miles](https://runthis.run/event/rs-148307-2026-killingworth-road-race-4-miles)** — Sat, Aug 29, 2026 · 12:00 AM UTC · Killingworth, CT · 4.0 mi
- **[Sgt Scoulars Overdose Awareness and Recovery 5K Run](https://runthis.run/event/rs-151083-sgt-scoulars-overdose-awareness-and-recovery-5k-run)** — Sat, Aug 29, 2026 · 12:00 AM UTC · New Milford, CT · 5K
- **[Roxbury Road Race Series #24](https://runthis.run/event/rs-201294-roxbury-road-race-series-24)** — Sat, Aug 29, 2026 · 12:00 AM UTC · Roxbury, CT
- **[Lobster Loop 5K](https://runthis.run/event/rs-113628-lobster-loop-5k)** — Sun, Aug 30, 2026 · 12:00 AM UTC · Canton, CT · 5K
- **[Newtown Community Running Event](https://runthis.run/event/rs-200563-newtown-community-running-event)** — Sun, Aug 30, 2026 · 12:00 AM UTC · Newtown, CT · 5K / 10K / Marathon
- **[Charity Softball Game: Benefitting LivFree!](https://runthis.run/event/rs-213789-charity-softball-game-benefitting-livfree)** — Sun, Aug 30, 2026 · 12:00 AM UTC · Westport, CT
- **[Be Happy Road Race](https://runthis.run/event/rs-76798-be-happy-road-race)** — Sun, Aug 30, 2026 · 12:00 AM UTC · Ellington, CT · 966 m / 5K / 10K / 22.5 mi
- **[TPC River Highlands](https://runthis.run/event/rs-159460-tpc-river-highlands)** — Mon, Aug 31, 2026 · 12:00 AM UTC · Cromwell, CT
- **[Run for The Hills](https://runthis.run/event/rs-142464-run-for-the-hills)** — Sat, Sep 5, 2026 · 12:00 AM UTC · Niantic, CT · 5K
- **[Quassapaug Sailing Center Open Water Swim](https://runthis.run/event/rs-149617-quassapaug-sailing-center-open-water-swim)** — Sat, Sep 5, 2026 · 12:00 AM UTC · Middlebury, CT · 3.0 mi / 1.5 mi / 805 m / 5.0 mi / 4.5 mi / 3.5 mi / 2.0 mi
- **[50th Annual Sao Paio 5k road race/walk and fun run](https://runthis.run/event/rs-166731-50th-annual-sao-paio-5k-road-race-walk-and-fun-run)** — Sat, Sep 5, 2026 · 12:00 AM UTC · Naugatuck, CT · 5K
- **[The GREAT Donut Challenge](https://runthis.run/event/rs-187550-the-great-donut-challenge)** — Sat, Sep 5, 2026 · 12:00 AM UTC · West Hartford, CT · 5K
- **[Roxbury Road Race Series #25](https://runthis.run/event/rs-201295-roxbury-road-race-series-25)** — Sat, Sep 5, 2026 · 12:00 AM UTC · Roxbury, CT · 1 mile
- **[Black Hog Brewing Co. 5K Road Race](https://runthis.run/event/rs-207485-black-hog-brewing-co-5k-road-race)** — Sat, Sep 5, 2026 · 12:00 AM UTC · Oxford, CT · 5K
- **[Rising Stars Training Program (Fall Session) Presented by Smartstart Pediatrics](https://runthis.run/event/rs-78831-rising-stars-training-program-fall-session-presented-by-smar)** — Sat, Sep 5, 2026 · 12:00 AM UTC · Glastonbury, CT
- **[Get Ready to Run! 5K Training Program (Fall Session) - presented by Hartford Healthcare](https://runthis.run/event/rs-78865-get-ready-to-run-5k-training-program-fall-session-presented-)** — Sat, Sep 5, 2026 · 12:00 AM UTC · Glastonbury, CT · 5K
- **[3rd Annual LSC Soccer Stride](https://runthis.run/event/rs-159506-3rd-annual-lsc-soccer-stride)** — Sun, Sep 6, 2026 · 12:00 AM UTC · Ledyard, CT · 5K / 4.0 mi
- **[Haddam Neck Fair 5K](https://runthis.run/event/rs-180185-haddam-neck-fair-5k)** — Sun, Sep 6, 2026 · 12:00 AM UTC · Haddam, CT · 5K
- **[Ride with Hal](https://runthis.run/event/rs-180832-ride-with-hal)** — Sun, Sep 6, 2026 · 12:00 AM UTC · Westbrook, CT · 35.0 mi / 15.0 mi / 5.0 mi
- **[Faxon Law New Haven Road Race](https://runthis.run/event/rs-69165-faxon-law-new-haven-road-race)** — Mon, Sep 7, 2026 · 12:00 AM UTC · New Haven, CT · Marathon / 12.4 mi / 5K / 805 m
- **[Notre Dame West Haven XC Duels](https://runthis.run/event/rs-213770-notre-dame-west-haven-xc-duels)** — Tue, Sep 8, 2026 · 12:00 AM UTC · West Haven, CT · 5K / 2.5 mi
- **[Somers Cross Country Home Meet 1](https://runthis.run/event/rs-153555-somers-cross-country-home-meet-1)** — Wed, Sep 9, 2026 · 12:00 AM UTC · Somers, CT · 5K
- **[SUFFIELD PARKS & RECREATION ROAD RACE](https://runthis.run/event/rs-125437-suffield-parks-recreation-road-race)** — Sat, Sep 12, 2026 · 12:00 AM UTC · Suffield, CT · 10K / 5K / 1.6 mi / 400 m
- **[Kailey Jaie Prenoveau Scholarship 5K Run](https://runthis.run/event/rs-126508-kailey-jaie-prenoveau-scholarship-5k-run)** — Sat, Sep 12, 2026 · 12:00 AM UTC · Harwinton, CT · 5K
- **[Groton City Brew Run](https://runthis.run/event/rs-141190-groton-city-brew-run)** — Sat, Sep 12, 2026 · 12:00 AM UTC · Groton, CT · 5K / 1500 m
- **[2026 Dave Parcells Madison Triathlon](https://runthis.run/event/rs-143254-2026-dave-parcells-madison-triathlon)** — Sat, Sep 12, 2026 · 12:00 AM UTC · Madison, CT · 16.5 mi / 12.5 mi / 16.2 mi
- **[Ladrigan Swim Races](https://runthis.run/event/rs-150782-ladrigan-swim-races)** — Sat, Sep 12, 2026 · 12:00 AM UTC · Norwalk, CT · 1 mile / 805 m / 402 m
- **[Roxbury Road Race Series #26](https://runthis.run/event/rs-201296-roxbury-road-race-series-26)** — Sat, Sep 12, 2026 · 12:00 AM UTC · Roxbury, CT · 6.4 mi
- **[Riva Runs The Boardwalk 5k](https://runthis.run/event/rs-208279-riva-runs-the-boardwalk-5k)** — Sat, Sep 12, 2026 · 12:00 AM UTC · West Haven, CT · 5K
- **[Greenleaf 5K River Run for the Fund](https://runthis.run/event/rs-211423-greenleaf-5k-river-run-for-the-fund)** — Sat, Sep 12, 2026 · 12:00 AM UTC · New London, CT · 5K
- **[Run 4 Hunger and Health](https://runthis.run/event/rs-70270-run-4-hunger-and-health)** — Sat, Sep 12, 2026 · 12:00 AM UTC · Newtown, CT · 5K / 1 mile
- **[Montville Race Day 5K , 10K , and Color Run](https://runthis.run/event/rs-116883-montville-race-day-5k-10k-and-color-run)** — Sun, Sep 13, 2026 · 12:00 AM UTC · Oakdale, CT · 5K / 10K
- **[Healthy Kids Running Series Fall 2026 - East Windsor, CT](https://runthis.run/event/rs-151838-healthy-kids-running-series-fall-2026-east-windsor-ct)** — Sun, Sep 13, 2026 · 12:00 AM UTC · East Windsor, CT · 4.0 mi / 2.0 mi / 1 mile
- **[2026 Farmington Memorial Walk & Kids' Fun Run](https://runthis.run/event/rs-167162-2026-farmington-memorial-walk-kids-fun-run)** — Sun, Sep 13, 2026 · 12:00 AM UTC · Farmington, CT
- **[West Haven Community House 85th Anniversary Community Fun Walk](https://runthis.run/event/rs-194749-west-haven-community-house-85th-anniversary-community-fun-wa)** — Sun, Sep 13, 2026 · 12:00 AM UTC · West Haven, CT · 2.0 mi
- **[PTSMC Stride to Provide 5K Run/Walk](https://runthis.run/event/rs-204390-ptsmc-stride-to-provide-5k-run-walk)** — Sun, Sep 13, 2026 · 12:00 AM UTC · Wallingford, CT · 5K
- **[2026 Lyme Hunter Pace](https://runthis.run/event/rs-210759-2026-lyme-hunter-pace)** — Sun, Sep 13, 2026 · 12:00 AM UTC · Lyme, CT · 8.0 mi
- **[Sprague All Are Welcome 1-mile fun run](https://runthis.run/event/rs-211619-sprague-all-are-welcome-1-mile-fun-run)** — Sun, Sep 13, 2026 · 12:00 AM UTC · Baltic, CT · 1 mile
- **[Sounds by the Seaport 5k Walk/Run](https://runthis.run/event/rs-212151-sounds-by-the-seaport-5k-walk-run)** — Sun, Sep 13, 2026 · 12:00 AM UTC · Waterford, CT · 5K
- **[EDRRC - High Watch Recovery Center's Sprint for Sobriety 5K Run/Walk](https://runthis.run/event/rs-63036-edrrc-high-watch-recovery-centers-sprint-for-sobriety-5k-run)** — Sun, Sep 13, 2026 · 12:00 AM UTC · Kent, CT · 5K
- **[14th Annual Miles for a Mission 5K Run/Walk – In Person AND Virtual – benefiting INTEMPO](https://runthis.run/event/rs-8595-14th-annual-miles-for-a-mission-5k-run-walk-in-person-and-vi)** — Mon, Sep 14, 2026 · 12:00 AM UTC · Stamford, CT · 5K
- **[Cheshire Community YMCA Harvest Trail Race and Y Cup Relay](https://runthis.run/event/rs-184916-cheshire-community-ymca-harvest-trail-race-and-y-cup-relay)** — Wed, Sep 16, 2026 · 12:00 AM UTC · Cheshire, CT · 5K / 400 m
- **[Connecticut River Valley Invitational](https://runthis.run/event/rs-151723-connecticut-river-valley-invitational)** — Sat, Sep 19, 2026 · 12:00 AM UTC · Cromwell, CT · 5K
- **[Bound for the Sound](https://runthis.run/event/rs-165457-bound-for-the-sound)** — Sat, Sep 19, 2026 · 12:00 AM UTC · Old Lyme, CT · 5K / 10K / 1 mile
- **[2nd Annual PCS Harvest Hustle 5K & Kids Run](https://runthis.run/event/rs-185571-2nd-annual-pcs-harvest-hustle-5k-kids-run)** — Sat, Sep 19, 2026 · 12:00 AM UTC · Pomfret Center, CT · 805 m / 5K
- **[Fleet Feet Hartford Fall 2026 Training Programs](https://runthis.run/event/rs-189490-fleet-feet-hartford-fall-2026-training-programs)** — Sat, Sep 19, 2026 · 12:00 AM UTC · West Hartford, CT · 5K / 5.0 mi
- **[Roxbury Road Race Series #27](https://runthis.run/event/rs-201297-roxbury-road-race-series-27)** — Sat, Sep 19, 2026 · 12:00 AM UTC · Roxbury, CT · 4.3 mi
- **[ABC Laps For Life 5k](https://runthis.run/event/rs-211058-abc-laps-for-life-5k)** — Sat, Sep 19, 2026 · 12:00 AM UTC · Middletown, CT · 5K
- **[4 Town 5k](https://runthis.run/event/rs-37363-4-town-5k)** — Sat, Sep 19, 2026 · 12:00 AM UTC · Somers, CT · 5K
- **[OUTRUN ADDICTION 5K](https://runthis.run/event/rs-56064-outrun-addiction-5k)** — Sat, Sep 19, 2026 · 12:00 AM UTC · Enfield, CT · 5K / 2.0 mi
- **[Arc Run](https://runthis.run/event/rs-63969-arc-run)** — Sat, Sep 19, 2026 · 12:00 AM UTC · Meriden, CT · 10K / 5K
- **[Bozrah Fire Department 5k Road Race and Kids' fun run](https://runthis.run/event/rs-65265-bozrah-fire-department-5k-road-race-and-kids-fun-run)** — Sat, Sep 19, 2026 · 12:00 AM UTC · Bozrah, CT · 5K
- **[2026 Run To The River 5K](https://runthis.run/event/rs-65480-2026-run-to-the-river-5k)** — Sat, Sep 19, 2026 · 12:00 AM UTC · Deep River, CT · 5K
- **[Cockaponsett Trails to a Cure](https://runthis.run/event/rs-123621-cockaponsett-trails-to-a-cure)** — Sun, Sep 20, 2026 · 12:00 AM UTC · Chester, CT · 9.0 mi / 4.0 mi
- **[2026 Darien Road Race & Family Fun Day Charity Fundraiser](https://runthis.run/event/rs-131747-2026-darien-road-race-family-fun-day-charity-fundraiser)** — Sun, Sep 20, 2026 · 12:00 AM UTC · Darien, CT · 1.5 mi / 5.0 mi
- **[Murray Lender 5K Bagel Run](https://runthis.run/event/rs-132991-murray-lender-5k-bagel-run)** — Sun, Sep 20, 2026 · 12:00 AM UTC · Woodbridge, CT · 800 m / 5K / 2.0 mi
- **[17th Annual Farmington River Run 5K Trail Race](https://runthis.run/event/rs-134992-17th-annual-farmington-river-run-5k-trail-race)** — Sun, Sep 20, 2026 · 12:00 AM UTC · Farmington, CT · 5K
- **[Come Out & Run 5k](https://runthis.run/event/rs-161134-come-out-run-5k)** — Sun, Sep 20, 2026 · 12:00 AM UTC · Wilton, CT · 5K
- **[14th Annual NOW ~Lap The Lake~ 5k Walk & Run](https://runthis.run/event/rs-162868-14th-annual-now-lap-the-lake-5k-walk-run)** — Sun, Sep 20, 2026 · 12:00 AM UTC · Dayville, CT · 5K
- **[Zoomerangs! Kids Running Program](https://runthis.run/event/rs-189336-zoomerangs-kids-running-program)** — Sun, Sep 20, 2026 · 12:00 AM UTC · West Hartford, CT
- **[HALF WAY TO ST. PATS DAY 5K](https://runthis.run/event/rs-190055-half-way-to-st-pats-day-5k)** — Sun, Sep 20, 2026 · 12:00 AM UTC · Stratford, CT · 5K
- **[One Mile, One Goal Run](https://runthis.run/event/rs-211396-one-mile-one-goal-run)** — Sun, Sep 20, 2026 · 12:00 AM UTC · Enfield, CT · 1 mile
- **[Where the Pavement Ends Single & Double Loop](https://runthis.run/event/rs-27881-where-the-pavement-ends-single-double-loop)** — Sun, Sep 20, 2026 · 12:00 AM UTC · Ridgefield, CT · 4.3 mi / 8.2 mi
- **[Circle of Care's Annual Walk/Run for Kids With Cancer](https://runthis.run/event/rs-72129-circle-of-cares-annual-walk-run-for-kids-with-cancer)** — Sun, Sep 20, 2026 · 12:00 AM UTC · Westport, CT · 5K
- **[Hogsback Half Marathon](https://runthis.run/event/rs-117812-hogsback-half-marathon)** — Sat, Sep 26, 2026 · 12:00 AM UTC · Colebrook, CT · Marathon
- **[No Sto Defeats MSA 5K Trail Race and Fitness Walk](https://runthis.run/event/rs-119126-no-sto-defeats-msa-5k-trail-race-and-fitness-walk)** — Sat, Sep 26, 2026 · 12:00 AM UTC · North Stonington, CT · 5K / 1 mile
- **[The River Run](https://runthis.run/event/rs-129056-the-river-run)** — Sat, Sep 26, 2026 · 12:00 AM UTC · Simsbury, CT · 5K / 10K / 1 mile
- **[Woodbridge 5k](https://runthis.run/event/rs-132702-woodbridge-5k)** — Sat, Sep 26, 2026 · 12:00 AM UTC · Woodbridge, CT · 5K
- **[Chamber Challenge 5K](https://runthis.run/event/rs-182075-chamber-challenge-5k)** — Sat, Sep 26, 2026 · 12:00 AM UTC · Meriden, CT · 5K
- **[2026 Pies & Pub TaTa Trot 5k](https://runthis.run/event/rs-186801-2026-pies-pub-tata-trot-5k)** — Sat, Sep 26, 2026 · 12:00 AM UTC · Middlebury, CT · 5K
- **[Together We Run for Education Charity Road Race](https://runthis.run/event/rs-189559-together-we-run-for-education-charity-road-race)** — Sat, Sep 26, 2026 · 12:00 AM UTC · East Hartford, CT · 5K / 1.5 mi
- **[Hayfield Hustle and Oktoberfest at New Pond Farm Education Center](https://runthis.run/event/rs-196277-hayfield-hustle-and-oktoberfest-at-new-pond-farm-education-c)** — Sat, Sep 26, 2026 · 12:00 AM UTC · Redding, CT · 5.0 mi / 5K / 1000 m
- **[Roxbury Road Race Series #28](https://runthis.run/event/rs-201298-roxbury-road-race-series-28)** — Sat, Sep 26, 2026 · 12:00 AM UTC · Roxbury, CT · 3.2 mi
- **[Cromwell Riverport 5k](https://runthis.run/event/rs-205048-cromwell-riverport-5k)** — Sat, Sep 26, 2026 · 12:00 AM UTC · Cromwell, CT · 5K
- **[Sickle Cell Disease Association of America, CT/ Michelle's House Walk. Run. Bike.](https://runthis.run/event/rs-64149-sickle-cell-disease-association-of-america-ct-michelles-hous)** — Sat, Sep 26, 2026 · 12:00 AM UTC · New Haven, CT · 5K / 1 mile / 15.0 mi
- **[Come on Over 5K and 2.1 Mile Fitness Walk](https://runthis.run/event/rs-79971-come-on-over-5k-and-2-1-mile-fitness-walk)** — Sat, Sep 26, 2026 · 12:00 AM UTC · Portland, CT · 5K / 2.1 mi
- **[Run/Walk To Save a Life 5K](https://runthis.run/event/rs-151381-run-walk-to-save-a-life-5k)** — Sun, Sep 27, 2026 · 12:00 AM UTC · Hamden, CT · 5K
- **[4th Annual Beach to Beach 5k](https://runthis.run/event/rs-151510-4th-annual-beach-to-beach-5k)** — Sun, Sep 27, 2026 · 12:00 AM UTC · Morris, CT · 5K
- **[Bosco Fowler Memorial 5K Road Race](https://runthis.run/event/rs-166393-bosco-fowler-memorial-5k-road-race)** — Sun, Sep 27, 2026 · 12:00 AM UTC · Stafford Springs, CT · 5K
- **[Moosup Valley 5k, 8K and 10K All Trail Race](https://runthis.run/event/rs-187443-moosup-valley-5k-8k-and-10k-all-trail-race)** — Sun, Sep 27, 2026 · 12:00 AM UTC · Sterling, CT · 5K / 10K / 5.0 mi
- **[Central CT Open Water Swim](https://runthis.run/event/rs-191759-central-ct-open-water-swim)** — Sun, Sep 27, 2026 · 12:00 AM UTC · Marlborough, CT · 5K
- **[HSS Greenwich Half Marathon](https://runthis.run/event/rs-197258-hss-greenwich-half-marathon)** — Sun, Sep 27, 2026 · 12:00 AM UTC · Old Greenwich, CT · Marathon
- **[The 39th Bigelow Tea Community Challenge](https://runthis.run/event/rs-321-the-39th-bigelow-tea-community-challenge)** — Sun, Sep 27, 2026 · 12:00 AM UTC · Southport, CT · 5K / 1.9 mi / 1 mile
- **[Lisbon Fall Festival Road Race](https://runthis.run/event/rs-60687-lisbon-fall-festival-road-race)** — Sun, Sep 27, 2026 · 12:00 AM UTC · Lisbon, CT · 5K
- **[Shoreline Small Schools League Meet](https://runthis.run/event/rs-213772-shoreline-small-schools-league-meet)** — Tue, Sep 29, 2026 · 12:00 AM UTC · Moodus, CT · 5K
- **[IronHike Mohawk Mountain Fall Series 2026](https://runthis.run/event/rs-174122-ironhike-mohawk-mountain-fall-series-2026)** — Thu, Oct 1, 2026 · 12:00 AM UTC · Mohawk Mtn Ski Area, Cornwall, CT · 29.0 mi / 100.0 mi / 15.0 mi / 28.8 mi / 43.8 mi / 61.2 mi / 152.5 mi
- **[IronHike Olympus Mons Ultra | Run, Power Hike, Walk. | Mohawk Mountain, Connecticut | Fall | October | Solo - 72,590 feet of elevation gain, possibly more than any endurance event of its kind. - 100 Mile + Elevation Endurance Ultra Trail Marathon - 152 + Miles - 84 Hour - We are redefining race day. Tags: Iron Hike, 100 Miler, Oct, CT, Cornwall, New England, Loop, Ski Slope, Skratch Labs, Hardest Ultra, Hard Ultra](https://runthis.run/event/rs-181117-ironhike-olympus-mons-ultra-run-power-hike-walk-mohawk-mount)** — Thu, Oct 1, 2026 · 12:00 AM UTC · Cornwall, CT · 152.0 mi
- **[IronHike Olympus Mons Ultra | Run, Power Hike, Walk. | Mohawk Mountain, Connecticut | Fall | October | Trail Buddy Flex Relay (2 Mountain Athletes) - 72,590 feet of elevation gain, possibly more than any endurance event of its kind. - 100 Mile + Elevation Endurance Ultra Trail Marathon - 152 + Miles - 84 Hour - We are redefining race day. Tags: Iron Hike, 100 Miler, Oct, CT, Cornwall, New England, Loop, Ski Slope, Skratch Labs, Hardest Ultra, Hard Ultra](https://runthis.run/event/rs-181122-ironhike-olympus-mons-ultra-run-power-hike-walk-mohawk-mount)** — Thu, Oct 1, 2026 · 12:00 AM UTC · Cornwall, CT · 152.0 mi
- **[Everest - 60 Mile + (60 Miler) - just over 29029 feet of elevation gain up and down - Everesting Elevation Endurance Ultra Trail Marathon - 61 + Miles | 72 Hour - IronHike (Iron Hike) Fall (October / Oct) - Solo - Mohawk Mountain, Connecticut (CT) - Run, Hike or Walk with us as we redefine race day.](https://runthis.run/event/rs-181145-everest-60-mile-60-miler-just-over-29029-feet-of-elevation-g)** — Thu, Oct 1, 2026 · 12:00 AM UTC · Cornwall, CT · 61.0 mi
- **[Everest - 60 Mile + (60 Miler) - just over 29029 feet of elevation gain up and down - Everesting Elevation Endurance Ultra Trail Marathon - 61 + Miles | 72 Hour - IronHike (Iron Hike) Fall (October / Oct) - Relay - Mohawk Mountain, Connecticut (CT) - Run, Hike or Walk with us as we redefine race day.](https://runthis.run/event/rs-181147-everest-60-mile-60-miler-just-over-29029-feet-of-elevation-g)** — Thu, Oct 1, 2026 · 12:00 AM UTC · Cornwall, CT · 61.0 mi
- **[Answer the Bell Full - 100 Mile + (100 Miler) - Complete a 1.2 mile, 600 foot loop every hour, on the hour, for up to 84 hours, until you can no longer answer the bell. - Elevation Endurance Ultra Backyard Trail Marathon - 100 + Miles | 84 Hour - IronHike (Iron Hike) Fall (October / Oct) - Solo - Mohawk Mountain, Connecticut (CT) - Run, hike, or walk with us as we redefine race day.](https://runthis.run/event/rs-186897-answer-the-bell-full-100-mile-100-miler-complete-a-1-2-mile-)** — Thu, Oct 1, 2026 · 12:00 AM UTC · Cornwall, CT · 61.0 mi
- **[Pounding the Pavement for Pink Races](https://runthis.run/event/rs-10399-pounding-the-pavement-for-pink-races)** — Fri, Oct 2, 2026 · 12:00 AM UTC · Seymour, CT · 5K / 1 mile
- **[Nonnewaug Cross Country Invitational](https://runthis.run/event/rs-151430-nonnewaug-cross-country-invitational)** — Fri, Oct 2, 2026 · 12:00 AM UTC · Woodbury, CT · 5K / 1.5 mi
- **[Denali - 40 Mile + (40 Miler) - if you can only spare your whole weekend - Elevation Endurance Ultra Trail Marathon - 43 + Miles | 48 Hour - IronHike (Iron Hike) Fall (October / Oct) - Solo - Mohawk Mountain, Connecticut (CT) - Run, Hike or Walk with us as we redefine race day.](https://runthis.run/event/rs-181154-denali-40-mile-40-miler-if-you-can-only-spare-your-whole-wee)** — Fri, Oct 2, 2026 · 12:00 AM UTC · Cornwall, CT · 43.0 mi
- **[Denali - 40 Mile + (40 Miler) - if you can only spare your whole weekend - Elevation Endurance Ultra Trail Marathon - 43 + Miles | 48 Hour - IronHike (Iron Hike) Fall (October / Oct) - Relay - Mohawk Mountain, Connecticut (CT) - Run, Hike or Walk with us as we redefine race day.](https://runthis.run/event/rs-181162-denali-40-mile-40-miler-if-you-can-only-spare-your-whole-wee)** — Fri, Oct 2, 2026 · 12:00 AM UTC · Cornwall, CT · 43.0 mi
- **[5th Annual Purple Light Project 5K](https://runthis.run/event/rs-128588-5th-annual-purple-light-project-5k)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Hartford, CT · 5K / 1 mile
- **[Iron Hike - Fall Double Kuwohi Trail Marathon Plus - 28+ Miles | 13,685' Elevation | 24-Hour | Run, Hike or Walk](https://runthis.run/event/rs-181215-iron-hike-fall-double-kuwohi-trail-marathon-plus-28-miles-13)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Cornwall, CT · 28.0 mi
- **[Iron Hike - Fall Double Kuwohi Trail Marathon Plus Relay - 28+ Miles | 13,685' Elevation | 24-Hour | Run, Hike or Walk](https://runthis.run/event/rs-181216-iron-hike-fall-double-kuwohi-trail-marathon-plus-relay-28-mi)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Cornwall, CT · 28.0 mi
- **[IronHike Kuwohi | Run, Power Hike, Walk. Solo | Start Here | Mohawk Mountain, Connecticut | 15 Miles | 7,140' Elevation | 12-Hour | Fall October - 7,140 feet of elevation gain across 12 laps on Mohawk Mountain Trail, the entry point for first time Mountain Athletes. - Elevation Endurance Half Marathon - We are redefining race day. Tags: Iron Hike, Trail Half Marathon Plus, Half Marathon, 15 Miler, Oct, CT, Cornwall, New England, Loop, Ski Slope, Beginner Endurance](https://runthis.run/event/rs-181220-ironhike-kuwohi-run-power-hike-walk-solo-start-here-mohawk-m)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Cornwall, CT · 15.0 mi
- **[Iron Hike - Fall Kuwohi Trail Half Marathon Plus Relay - 15 Miles | 7,140' Elevation | 12-Hour | Run, Hike or Walk](https://runthis.run/event/rs-181221-iron-hike-fall-kuwohi-trail-half-marathon-plus-relay-15-mile)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Cornwall, CT · 15.0 mi
- **[Iron Hike - Fall Answer the Bell Ultra Trail Marathon - Basic (Backyard Ultra Format) - 28+ Miles | 14,400'+ Elevation | 24-Hour | Run, Hike or Walk](https://runthis.run/event/rs-186896-iron-hike-fall-answer-the-bell-ultra-trail-marathon-basic-ba)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Cornwall, CT · 61.0 mi
- **[Forbidden Forest 30 Hour Ultra](https://runthis.run/event/rs-199260-forbidden-forest-30-hour-ultra)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Stratford, CT
- **[Roxbury Road Race Series #29](https://runthis.run/event/rs-201299-roxbury-road-race-series-29)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Roxbury, CT · 2.3 mi
- **[Race Brook's Rockin' Road Race](https://runthis.run/event/rs-209597-race-brooks-rockin-road-race)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Orange, CT · 5K
- **[Running for Water for Africa 5K](https://runthis.run/event/rs-3654-running-for-water-for-africa-5k)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Milford, CT · 5K / 1 mile
- **[Cider Mill Road Race](https://runthis.run/event/rs-41023-cider-mill-road-race)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Tolland, CT · 5K / 1 mile
- **[Salmon River 5.5 Mile Run](https://runthis.run/event/rs-484-salmon-river-5-5-mile-run)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Colchester, CT · 5.5 mi
- **[Dana's Angels Research Trust's 2026 "DART To The Finish" 2 Mile Walk to Cure Niemann-Pick type C Disease](https://runthis.run/event/rs-74513-danas-angels-research-trusts-2026-dart-to-the-finish-2-mile-)** — Sat, Oct 3, 2026 · 12:00 AM UTC · Old Greenwich, CT · 2.0 mi
- **[Garavel SoNo Half Marathon | 5K](https://runthis.run/event/rs-123423-garavel-sono-half-marathon-5k)** — Sun, Oct 4, 2026 · 12:00 AM UTC · Norwalk, CT · Marathon / 5K / 1 mile
- **[Norfolk Land Trust Trail Race Series/Haystack Mountain Challenge](https://runthis.run/event/rs-144932-norfolk-land-trust-trail-race-series-haystack-mountain-chall)** — Sun, Oct 4, 2026 · 12:00 AM UTC · Norfolk, CT · 5K / 10K / Marathon
- **[2026 Groton Memorial Walk & Kids' Fun Run](https://runthis.run/event/rs-167227-2026-groton-memorial-walk-kids-fun-run)** — Sun, Oct 4, 2026 · 12:00 AM UTC · Groton, CT
- **[Apple Harvest Road Races](https://runthis.run/event/rs-177140-apple-harvest-road-races)** — Sun, Oct 4, 2026 · 12:00 AM UTC · Southington, CT · 5.0 mi / 5K / 2.0 mi / 1 mile
- **[Strides for Strength!](https://runthis.run/event/rs-184408-strides-for-strength)** — Sun, Oct 4, 2026 · 12:00 AM UTC · Bridgeport, CT · 5K
- **[Big Sky 5K and Kids 1 mile Dash](https://runthis.run/event/rs-187105-big-sky-5k-and-kids-1-mile-dash)** — Sun, Oct 4, 2026 · 12:00 AM UTC · Farmington, CT · 5K / 1 mile
- **[Capalbo Strong Walk](https://runthis.run/event/rs-205759-capalbo-strong-walk)** — Sun, Oct 4, 2026 · 12:00 AM UTC · Fairfield, CT · 14.9 mi
- **[Fishbein / YMCA Community Road Race](https://runthis.run/event/rs-59488-fishbein-ymca-community-road-race)** — Sun, Oct 4, 2026 · 12:00 AM UTC · Wallingford, CT · 5K / 1000 m / 1 mile
- **[Somers Cross Country Home Meet 2](https://runthis.run/event/rs-154595-somers-cross-country-home-meet-2)** — Wed, Oct 7, 2026 · 12:00 AM UTC · Somers, CT · 5K
- **[Westover Cross Country Meet](https://runthis.run/event/rs-193459-westover-cross-country-meet)** — Wed, Oct 7, 2026 · 12:00 AM UTC · Middlebury, CT · 5K
- **[RACE FOR CATHERINE](https://runthis.run/event/rs-108609-race-for-catherine)** — Fri, Oct 9, 2026 · 12:00 AM UTC · Newtown, CT · 5K
- **[Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K](https://runthis.run/event/rs-151105-eversource-hartford-marathon-half-marathon-relay-charity-5k)** — Sat, Oct 10, 2026 · 12:00 AM UTC · Hartford, CT · Marathon / 5K
- **[4th Annual Pumpkin Run Harwinton 5K & Kids Dash](https://runthis.run/event/rs-151540-4th-annual-pumpkin-run-harwinton-5k-kids-dash)** — Sat, Oct 10, 2026 · 12:00 AM UTC · Harwinton, CT · 5K
- **[Gemstone Sparkle Sprint 5k](https://runthis.run/event/rs-179715-gemstone-sparkle-sprint-5k)** — Sat, Oct 10, 2026 · 12:00 AM UTC · Wilton, CT · 5K / 1 mile
- **[Roxbury Road Race Series #30](https://runthis.run/event/rs-201300-roxbury-road-race-series-30)** — Sat, Oct 10, 2026 · 12:00 AM UTC · Roxbury, CT · 8.2 mi
- **[Miles for Moriah](https://runthis.run/event/rs-210449-miles-for-moriah)** — Sat, Oct 10, 2026 · 12:00 AM UTC · West Haven, CT · 5.0 mi
- **[Hartland Harvest Run](https://runthis.run/event/rs-51446-hartland-harvest-run)** — Sat, Oct 10, 2026 · 12:00 AM UTC · East Hartland, CT · 5K
- **[Walk/Run for Abilis](https://runthis.run/event/rs-187170-walk-run-for-abilis)** — Sun, Oct 11, 2026 · 12:00 AM UTC · Old Greenwich, CT · 5K
- **[Lime Rock Park 5K](https://runthis.run/event/rs-211831-lime-rock-park-5k)** — Sun, Oct 11, 2026 · 12:00 AM UTC · Lakeville, CT · 5K
- **[Benhaven Walk for Autism](https://runthis.run/event/rs-70771-benhaven-walk-for-autism)** — Sun, Oct 11, 2026 · 12:00 AM UTC · New Haven, CT · 2.0 mi
- **[NVL Cross Country Championship](https://runthis.run/event/rs-185823-nvl-cross-country-championship)** — Wed, Oct 14, 2026 · 12:00 AM UTC · Watertown, CT · 5K
- **[The Little Guild 13th Annual Run & Wag 5K](https://runthis.run/event/rs-114594-the-little-guild-13th-annual-run-wag-5k)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Cornwall, CT · 5K
- **[Tom Centinaro Memorial "Dam" Race](https://runthis.run/event/rs-131904-tom-centinaro-memorial-dam-race)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Wolcott, CT · 3.5 mi
- **[Cider Run/Walk 5k](https://runthis.run/event/rs-135172-cider-run-walk-5k)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Warren, CT · 5K
- **[Tunnel to Towers 5K Run & Walk - Bridgeport, CT](https://runthis.run/event/rs-163839-tunnel-to-towers-5k-run-walk-bridgeport-ct)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Bridgeport, CT · 5K
- **[All Hallows Eve 5K](https://runthis.run/event/rs-190538-all-hallows-eve-5k)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Hampton, CT · 5K
- **[Westover Girls Cross Country Meet](https://runthis.run/event/rs-193588-westover-girls-cross-country-meet)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Middlebury, CT · 5K
- **[Harvest Hope 5K](https://runthis.run/event/rs-199644-harvest-hope-5k)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Bolton, CT · 5K
- **[Roxbury Road Race Series #31](https://runthis.run/event/rs-201301-roxbury-road-race-series-31)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Roxbury, CT · 4.2 mi
- **[4th Annual OAH STRIDES Race and Family Fun Day](https://runthis.run/event/rs-207324-4th-annual-oah-strides-race-and-family-fun-day)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Simsbury, CT · 5K / 10K / 1 mile
- **[IDS Fearless 5K Run and Walk](https://runthis.run/event/rs-211548-ids-fearless-5k-run-and-walk)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Middlefield, CT · 5K / 1 mile
- **[Consumer Reports 5K](https://runthis.run/event/rs-211622-consumer-reports-5k)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Colchester, CT · 5K
- **[Run for Waterside](https://runthis.run/event/rs-211845-run-for-waterside)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Stamford, CT · 5K / 1 mile
- **[Coast Guard Foundation - Run to Remember 5k Road Race & Walk](https://runthis.run/event/rs-212353-coast-guard-foundation-run-to-remember-5k-road-race-walk)** — Sat, Oct 17, 2026 · 12:00 AM UTC · New London, CT · 5K / 800 m
- **[Ivoryton Pumpkin Chase](https://runthis.run/event/rs-64222-ivoryton-pumpkin-chase)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Ivoryton, CT · 5K / 2.0 mi
- **[Tackle the Trail (TM)](https://runthis.run/event/rs-72220-tackle-the-trail-tm)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Northeast, CT · Marathon / 10K
- **[Robert Tedford Memorial 5K Road Race](https://runthis.run/event/rs-81639-robert-tedford-memorial-5k-road-race)** — Sat, Oct 17, 2026 · 12:00 AM UTC · Ellington, CT · 5K
- **[Mikey's Place 5K](https://runthis.run/event/rs-116681-mikeys-place-5k)** — Sun, Oct 18, 2026 · 12:00 AM UTC · Wethersfield, CT · 5K
- **[The Salisbury Beast 5K](https://runthis.run/event/rs-118512-the-salisbury-beast-5k)** — Sun, Oct 18, 2026 · 12:00 AM UTC · Salisbury, CT · 5K
- **[The 36th edition of THE Great Pumpkin Classic](https://runthis.run/event/rs-12027-the-36th-edition-of-the-great-pumpkin-classic)** — Sun, Oct 18, 2026 · 12:00 AM UTC · TRUMBULL, CT · 5K / 1.9 mi
- **[Bristol Mum-A-Thon Road Race 2026](https://runthis.run/event/rs-125296-bristol-mum-a-thon-road-race-2026)** — Sun, Oct 18, 2026 · 12:00 AM UTC · Bristol, CT · 1 mile / 5K / 5.0 mi / 8.0 mi

_Showing the 150 soonest of 262 upcoming races. The full list is on [the page itself](https://runthis.run/races/connecticut)._

## Races by distance in Connecticut

- [5K races in Connecticut (184)](https://runthis.run/races/connecticut/5k.md)
- [10K races in Connecticut (20)](https://runthis.run/races/connecticut/10k.md)
- [Half Marathon races in Connecticut (16)](https://runthis.run/races/connecticut/half-marathon.md)
- [Marathon races in Connecticut (5)](https://runthis.run/races/connecticut/marathon.md)
- [Ultra races in Connecticut (14)](https://runthis.run/races/connecticut/ultra.md)

## Races by city in Connecticut

- [Roxbury, CT (16)](https://runthis.run/races/connecticut/roxbury.md)
- [Cornwall, CT (13)](https://runthis.run/races/connecticut/cornwall.md)
- [Hamden, CT (6)](https://runthis.run/races/connecticut/hamden.md)
- [New Haven, CT (6)](https://runthis.run/races/connecticut/new-haven.md)
- [Stratford, CT (6)](https://runthis.run/races/connecticut/stratford.md)
- [West Hartford, CT (5)](https://runthis.run/races/connecticut/west-hartford.md)
- [Fairfield, CT (4)](https://runthis.run/races/connecticut/fairfield.md)
- [Hartford, CT (4)](https://runthis.run/races/connecticut/hartford.md)
- [Litchfield, CT (4)](https://runthis.run/races/connecticut/litchfield.md)
- [Meriden, CT (4)](https://runthis.run/races/connecticut/meriden.md)
- [Middlebury, CT (4)](https://runthis.run/races/connecticut/middlebury.md)
- [Mystic, CT (4)](https://runthis.run/races/connecticut/mystic.md)
- [Newtown, CT (4)](https://runthis.run/races/connecticut/newtown.md)
- [Stamford, CT (4)](https://runthis.run/races/connecticut/stamford.md)
- [West Haven, CT (4)](https://runthis.run/races/connecticut/west-haven.md)
- [Westport, CT (4)](https://runthis.run/races/connecticut/westport.md)
- [Wilton, CT (4)](https://runthis.run/races/connecticut/wilton.md)
- [Cheshire, CT (3)](https://runthis.run/races/connecticut/cheshire.md)
- [Cromwell, CT (3)](https://runthis.run/races/connecticut/cromwell.md)
- [Farmington, CT (3)](https://runthis.run/races/connecticut/farmington.md)
- [Glastonbury, CT (3)](https://runthis.run/races/connecticut/glastonbury.md)
- [Groton, CT (3)](https://runthis.run/races/connecticut/groton.md)
- [Kent, CT (3)](https://runthis.run/races/connecticut/kent.md)
- [Marlborough, CT (3)](https://runthis.run/races/connecticut/marlborough.md)
- [Milford, CT (3)](https://runthis.run/races/connecticut/milford.md)
- [New London, CT (3)](https://runthis.run/races/connecticut/new-london.md)
- [Norwalk, CT (3)](https://runthis.run/races/connecticut/norwalk.md)
- [Old Greenwich, CT (3)](https://runthis.run/races/connecticut/old-greenwich.md)
- [Simsbury, CT (3)](https://runthis.run/races/connecticut/simsbury.md)
- [Somers, CT (3)](https://runthis.run/races/connecticut/somers.md)
- [Wallingford, CT (3)](https://runthis.run/races/connecticut/wallingford.md)
- [Waterford, CT (3)](https://runthis.run/races/connecticut/waterford.md)

---

Source: [https://runthis.run/races/connecticut](https://runthis.run/races/connecticut) — data from Run This (runthis.run).