Races in Connecticut

271 upcoming road, trail, triathlon, and ultra races in Connecticut for 2026 and beyond — 5Ks, 10Ks, half marathons, marathons, and more.

5K Races (167)10K Races (17)Half Marathons (16)Marathons (4)Ultramarathons (16)

Valley of Hartford 5K Road Race
Sat, Jul 25, 2026 · Newington, CT
5K
LYSB Midsummer Run
Sat, Jul 25, 2026 · Old Lyme, CT
5K1K
Southwest Cafe Margarita 5K
Sat, Jul 25, 2026 · Ridgefield, CT
5K
Woodmont 5K
Sat, Jul 25, 2026 · Milford, CT
5K
New Milford Parks & Recreation Road Race
Sat, Jul 25, 2026 · New Milford, CT
5K12.9K
Surfin' Santa's Christmas In July 5k & Holiday Stroll
Sun, Jul 26, 2026 · Stratford, CT
5K1 Mile
LivSports Youth Hockey Summer Camp
Mon, Jul 27, 2026 · Bridgeport, CT
Worthington Late Summer 5k Running Series
Wed, Jul 29, 2026 · Somers, CT
5K
Lake Terramuggus Sprint Triathlon #4
Thu, Jul 30, 2026 · Marlborough, CT
23.1K11.8K18.3K
The Trumbull Rotary Sunset 5k Run & Walk
Fri, Jul 31, 2026 · Trumbull, CT
5K1 Mile1K
Roxbury Road Race Series #20
Sat, Aug 1, 2026 · Roxbury, CT
7.6K
Pete Hawley People's 7
Sat, Aug 1, 2026 · Barkhamsted, CT
11.3K
Race4Chase Triathlon Program FINALE Race: Connecticut
Sat, Aug 1, 2026 · Southington, CT
CT Hospice Miles for Memories
Sat, Aug 1, 2026 · Branford, CT
3.2K1 Mile
64th Annual Ocean Beach/John & Jessie Kelley Half Marathon
Sat, Aug 1, 2026 · New London, CT
Half Marathon
It's All Downhill From Here 5K
Sat, Aug 1, 2026 · Wilton, CT
5K
Boys & Girls Club of Milford Ice Cream Run (5K)
Sun, Aug 2, 2026 · Milford, CT
5K
Griswold I scream, you scream, there won’t be any ice cream 1 miler
Sun, Aug 2, 2026 · Griswold, CT
1 Mile
LivSports Youth Baseball Summer Camp
Mon, Aug 3, 2026 · Bridgeport, CT
Stonington Cross Country 5K
Wed, Aug 5, 2026 · Pawcatuck, CT
5K1K
Roxbury Road Race Series #21
Sat, Aug 8, 2026 · Roxbury, CT
10.3K
2026 Natchaug 5K Color Run & Walk
Sat, Aug 8, 2026 · Mansfield Center, CT
5K
Follow Natural Fitness Women's Health 5K
Sat, Aug 8, 2026 · Bridgeport, CT
5K1 Mile
East Haddam Sprint and Family Fun Triathlon
Sat, Aug 8, 2026 · Moodus, CT
Woofbridge 5k Run/2 Mile Walk
Sat, Aug 8, 2026 · Woodbridge, CT
5K
The Perogie Dash
Sat, Aug 8, 2026 · Danbury, CT
5K1K
Run the Vineyards - Priam Vineyards 5K
Sun, Aug 9, 2026 · Colchester, CT
5K
Niantic Bay Triathlon
Sun, Aug 9, 2026 · Niantic, CT
24.3K19.2K
Run for Wishes 5K Benefitting MAKE-A-WISH® CONNECTICUT
Sun, Aug 9, 2026 · Stratford, CT
5K
12th Annual Step Up for the Brave
Mon, Aug 10, 2026 · Fairfield, CT
Tantaquidgeon Run
Thu, Aug 13, 2026 · Uncasville, CT
1 Mile
Bikes & Beers Branford
Sat, Aug 15, 2026 · Branford, CT
72.4K48.3K24.1K
Lake Terramuggus Olympic Triathlon
Sat, Aug 15, 2026 · Marlborough, CT
51.7KMarathon
Jill's Race for MS
Sat, Aug 15, 2026 · Beacon Falls, CT
5K
Scotland's Washed Out Bridge Endurance Challenge
Sat, Aug 15, 2026 · Scotland, CT
Run for Unity
Sat, Aug 15, 2026 · New London, CT
5K
2nd Annual Rocky Hill 2M Run & Kids Run
Sat, Aug 15, 2026 · Rocky Hill, CT
1K3.2K
Roxbury Road Race Series #22
Sat, Aug 15, 2026 · Roxbury, CT
6.8K
MAD 5K
Sat, Aug 15, 2026 · New London, CT
5K
Mohegan Striders 4-Miler at Sneekers
Sun, Aug 16, 2026 · Groton, CT
6.4K
Battle of Stonington 5K
Tue, Aug 18, 2026 · Stonington, CT
5K402m
Amber Room Run from the Sun 5K
Thu, Aug 20, 2026 · Danbury, CT
5K
PATH TO THE PARADE 5K
Fri, Aug 21, 2026 · Hamden, CT
5K
Shore 2 The Pour Beach Run 2026
Sat, Aug 22, 2026 · Stratford, CT
5K
17th Annual Saybrook Point 5k Road Race
Sat, Aug 22, 2026 · Old Saybrook, CT
5K
Roxbury Road Race Series #23
Sat, Aug 22, 2026 · Roxbury, CT
11.6K
The Bridgeport Mile: Track Style
Sat, Aug 22, 2026 · Bridgeport, CT
1 Mile
Old Wethersfield 5K & 10K
Sun, Aug 23, 2026 · Wethersfield, CT
10K5K
Healthy Kids Running Series Fall 2026 - Pomfret, CT
Sun, Aug 23, 2026 · Pomfret, CT
2026 Unite to Fight 5K Run/Walk
Sun, Aug 23, 2026 · Stamford, CT
5K100m
Riverfront East Hartford 5 Mile
Thu, Aug 27, 2026 · East Hartford, CT
6.4K
Roxbury Road Race Series #24
Sat, Aug 29, 2026 · Roxbury, CT
Sgt Scoulars Overdose Awareness and Recovery 5K Run
Sat, Aug 29, 2026 · New Milford, CT
5K
2026 Killingworth Road Race 4 Miles
Sat, Aug 29, 2026 · Killingworth, CT
6.4K
Newtown Community Running Event
Sun, Aug 30, 2026 · Newtown, CT
5K10KHalf Marathon
Lobster Loop 5K
Sun, Aug 30, 2026 · Canton, CT
5K
Be Happy Road Race
Sun, Aug 30, 2026 · Ellington, CT
1K5K10K
TPC River Highlands
Mon, Aug 31, 2026 · Cromwell, CT
50th Annual Sao Paio 5k road race/walk and fun run
Sat, Sep 5, 2026 · Naugatuck, CT
5K
Quassapaug Sailing Center Open Water Swim
Sat, Sep 5, 2026 · Middlebury, CT
5K2.4K1K8K7.2K5.6K3.2K
Run for The Hills
Sat, Sep 5, 2026 · Niantic, CT
5K
Roxbury Road Race Series #25
Sat, Sep 5, 2026 · Roxbury, CT
1 Mile
Black Hog Brewing Co. 5K Road Race
Sat, Sep 5, 2026 · Oxford, CT
5K
Get Ready to Run! 5K Training Program (Fall Session) - presented by Hartford Healthcare
Sat, Sep 5, 2026 · Glastonbury, CT
3rd Annual LSC Soccer Stride
Sun, Sep 6, 2026 · Ledyard, CT
5K
Haddam Neck Fair 5K
Sun, Sep 6, 2026 · Haddam, CT
5K
Ride with Hal
Sun, Sep 6, 2026 · Westbrook, CT
56.3K24.1K8K
Faxon Law New Haven Road Race
Mon, Sep 7, 2026 · New Haven, CT
Half Marathon20K5K1K
2026 Dave Parcells Madison Triathlon
Sat, Sep 12, 2026 · Madison, CT
26.6K20K26.1K
SUFFIELD PARKS & RECREATION ROAD RACE
Sat, Sep 12, 2026 · Suffield, CT
10K5K2.5K400m
Riva Runs The Boardwalk 5k
Sat, Sep 12, 2026 · West Haven, CT
5K
Greenleaf 5K River Run for the Fund
Sat, Sep 12, 2026 · New London, CT
5K
Groton City Brew Run
Sat, Sep 12, 2026 · Groton, CT
5K1 Mile
Kailey Jaie Prenoveau Scholarship 5K Run
Sat, Sep 12, 2026 · Harwinton, CT
5K
Roxbury Road Race Series #26
Sat, Sep 12, 2026 · Roxbury, CT
10.3K
Ladrigan Swim Races
Sat, Sep 12, 2026 · Norwalk, CT
1 Mile1K402m
Run 4 Hunger and Health
Sat, Sep 12, 2026 · Newtown, CT
5K1 Mile
Montville Race Day 5K , 10K , and Color Run
Sun, Sep 13, 2026 · Oakdale, CT
5K10K
Sprague All Are Welcome 1-mile fun run
Sun, Sep 13, 2026 · Baltic, CT
1 Mile
West Haven Community House 85th Anniversary Community Fun Walk
Sun, Sep 13, 2026 · West Haven, CT
3.2K
EDRRC - High Watch Recovery Center's Sprint for Sobriety 5K Run/Walk
Sun, Sep 13, 2026 · Kent, CT
5K
PTSMC Stride to Provide 5K Run/Walk
Sun, Sep 13, 2026 · Wallingford, CT
5K
2026 Farmington Memorial Walk & Kids' Fun Run
Sun, Sep 13, 2026 · Farmington, CT
Healthy Kids Running Series Fall 2026 - East Windsor, CT
Sun, Sep 13, 2026 · East Windsor, CT
14th Annual Miles for a Mission 5K Run/Walk – In Person AND Virtual – benefiting INTEMPO
Mon, Sep 14, 2026 · Stamford, CT
5K
2026 Run To The River 5K
Sat, Sep 19, 2026 · Deep River, CT
5K
2nd Annual PCS Harvest Hustle 5K & Kids Run
Sat, Sep 19, 2026 · Pomfret Center, CT
1K5K
4 Town 5k
Sat, Sep 19, 2026 · Somers, CT
5K
Bozrah Fire Department 5k Road Race and Kids' fun run
Sat, Sep 19, 2026 · Bozrah, CT
5K
Bound for the Sound
Sat, Sep 19, 2026 · Old Lyme, CT
5K10K1 Mile
OUTRUN ADDICTION 5K
Sat, Sep 19, 2026 · Enfield, CT
5K3.2K
Arc Run
Sat, Sep 19, 2026 · Meriden, CT
10K5K
Laps For Life 5k
Sat, Sep 19, 2026 · Middletown, CT
5K
Roxbury Road Race Series #27
Sat, Sep 19, 2026 · Roxbury, CT
6.9K
2026 Darien Road Race & Family Fun Day Charity Fundraiser
Sun, Sep 20, 2026 · Darien, CT
2.4K8K
Where the Pavement Ends Single & Double Loop
Sun, Sep 20, 2026 · Ridgefield, CT
6.9K13.2K
17th Annual Farmington River Run 5K Trail Race
Sun, Sep 20, 2026 · Farmington, CT
5K
Come Out & Run 5k
Sun, Sep 20, 2026 · Wilton, CT
5K
Cockaponsett Trails to a Cure
Sun, Sep 20, 2026 · Chester, CT
14.5K6.4K
HALF WAY TO ST. PATS DAY 5K
Sun, Sep 20, 2026 · Stratford, CT
5K

Showing the next 100 of 271 races. Use the full search to see them all.