5K Races in Connecticut

Black Hog Brewing Co. 5K Road Race

Sat, Sep 5 · Oxford, CT Oxford

Road 5K

From $30 Open Closing Soon

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Run for The Hills

Sat, Sep 5 · Niantic, CT Niantic

Trail Run for the Hills

From $25 Open Closing Soon

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Quassapaug Sailing Center Open Water Swim

Sat, Sep 5 · Middlebury, CT Middlebury

1/2 Mile1.5 Mile1.5 Mile and 1/2 Mile +4

From $30 Open Closing Soon

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The GREAT Donut Challenge

Sat, Sep 5 · West Hartford, CT West Hartford

Road The GREAT Donut Challenge

From $30 Open Closing Soon

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Haddam Neck Fair 5K

Sun, Sep 6 · Haddam, CT Haddam

Road Haddam Neck Fair 5K

From $18 Open Closing Soon

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3rd Annual LSC Soccer Stride

Sun, Sep 6 · Ledyard, CT Ledyard

Road 5k1/4 Mile Kids Fun Run

From $10 Open Closing Soon

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Faxon Law New Haven Road Race

Mon, Sep 7 · New Haven, CT New Haven

Virtual 1/2 Mile Kids Fun Run5KHalf Marathon +4

From $8 Open Closing Soon

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Greenleaf 5K River Run for the Fund

Sat, Sep 12 · New London, CT New London

Road Greenleaf 5K River Run for the Fund

From $30 Open Closing Soon

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Groton City Brew Run

Sat, Sep 12 · Groton, CT Groton

Road 5K AND Beer Garden Access: Run or Walk5K ONLY: Run or WalkBeer Garden Access Only

From $32 Open Closing Soon

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Run 4 Hunger and Health

Sat, Sep 12 · Newtown, CT Newtown

Road Kids RunRun 4 Hunger and Health

From $5 Open Closing Soon

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Riva Runs The Boardwalk 5k

Sat, Sep 12 · West Haven, CT West Haven

Road Riva Runs The Boardwalk 5k 20 & underRiva Runs The Boardwalk 5k 21 & over

From $25 Open Closing Soon

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SUFFIELD PARKS & RECREATION ROAD RACE

Sat, Sep 12 · Suffield, CT Suffield

Road 2026 Suffield Parks & Recreation Walk2026 Suffield Parks & Recreation 5k Road Race2026 Suffield Parks & Recreation 10k Road Race

From $0 Open Closing Soon

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Montville Race Day 5K , 10K , and Color Run

Sun, Sep 13 · Oakdale, CT Oakdale

Road 5K10K5K / 10K Bundle

From $30 Open Closing Soon

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EDRRC - High Watch Recovery Center's Sprint for Sobriety 5K Run/Walk

Sun, Sep 13 · Kent, CT Kent

Road EDRRC - High Watch Recovery Center's Sprint for Sobriety 5K Run/Walk

From $25 Open Closing Soon

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PTSMC Stride to Provide 5K Run/Walk

Sun, Sep 13 · Wallingford, CT Wallingford

Road Stride to Provide 5K

From $36.79 Open Closing Soon

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14th Annual Miles for a Mission 5K Run/Walk – In Person AND Virtual – benefiting INTEMPO

Mon, Sep 14 · Stamford, CT Stamford

Virtual 5K Run/Walk - IN PERSON - TIMED5K Run/Walk - IN PERSON - UNTIMED5K Run/Walk – VIRTUAL

From $30 Open

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Cheshire Community YMCA Harvest Trail Race and Y Cup Relay

Wed, Sep 16 · Cheshire, CT Cheshire

Trail Y Cup Relay5K Trail Race

From $17 Open

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Fleet Feet Hartford Fall 2026 Training Programs

Sat, Sep 19 · West Hartford, CT West Hartford

Road MRR Training ProgramBundle: 5K Training Program & Goal Race Registration5K Training Program - Training Program Only

From $100 Open

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OUTRUN ADDICTION 5K

Sat, Sep 19 · Enfield, CT Enfield

Virtual 2 Mile Walk5K Run or WalkVirtual 5K Run/Walk

From $25 Open Closing Soon

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Fleet Feet Hartford Fall 2026 5k & 10k Training Programs

Sat, Sep 19 · West Hartford, CT West Hartford

Road Bundle: 5k Training Program & Goal Race RegistrationBundle: 5k Training Program & Goal Race Registration5k Training Program - Training Program Only +4

From $100 Open

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Bound for the Sound

Sat, Sep 19 · Old Lyme, CT Old Lyme

Road 1 Mile Family Fun Run5K10K (USATF-CT 10K State Championship)

From $5 Open

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4 Town 5k

Sat, Sep 19 · Somers, CT Somers

Road 4 Town 5k

From $35 Open

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2026 Run To The River 5K

Sat, Sep 19 · Deep River, CT Deep River

Road 5K Run/Walk

From $20 Open Closing Soon

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Arc Run

Sat, Sep 19 · Meriden, CT Meriden

Virtual Virtual 5KARC 5KARC 10K

From $20 Open

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2nd Annual PCS Harvest Hustle 5K & Kids Run

Sat, Sep 19 · Pomfret Center, CT Pomfret Center

Road Kids Fun Run5K

From $10 Open

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17th Annual Farmington River Run 5K Trail Race

Sun, Sep 20 · Farmington, CT Farmington

Trail 5K Trail Run

From $35 Open

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HALF WAY TO ST. PATS DAY 5K

Sun, Sep 20 · Stratford, CT Stratford

Road Half Way to St Pats 5K 20 & underHalf Way to St Pats 5K 21 & overHalf Way to St Pats free kids run (10 & under)

From $0 Open Closing Soon

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Come Out & Run 5k

Sun, Sep 20 · Wilton, CT Wilton

Road Adult 18 +Kids under 10 RegistrationKids (age10 -17) Registration

From $0 Open

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Murray Lender 5K Bagel Run

Sun, Sep 20 · Woodbridge, CT Woodbridge

Road 2 Mile Family Fitness Walk/Run5K Race on USATF Certified Course

From $20 Open Closing Soon

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Circle of Care's Annual Walk/Run for Kids With Cancer

Sun, Sep 20 · Westport, CT Westport

Road In-Person 5K RUNIn-Person WALK

From $20 Open

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Circle of Care's Annual Walk/Run for Kids With Cancer

Sun, Sep 20 · Westport, CT Westport

Road In-Person 5K RUNIn-Person WALK/RUN

From $25 Open

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2026 Darien Road Race & Family Fun Day Charity Fundraiser

Sun, Sep 20 · Darien, CT Darien

Road 1.5-Mile Timed Run/Walk5-Mile Timed Race

From $45 Open

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Together We Run for Education Charity Road Race

Sat, Sep 26 · East Hartford, CT East Hartford

Road Together We Run for Education 1.5 Mile Walk (untimed)Together We Run for Education 5K Road Race

From $15 Open

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Sickle Cell Disease Association of America, CT/ Michelle's House Walk. Run. Bike.

Sat, Sep 26 · New Haven, CT New Haven

Road Sickle Cell Disease Association of America, CT/ 5K Walk - Michelle's HouseSickle Cell Disease Association of America, CT/ James Barber 5K Run - Michelle's HouseSickle Cell Disease Association of America, CT Bike Ride - Michelle's House

From $25 Open

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