Connecticut Half Marathons
19 upcoming half marathons across Connecticut, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: half marathons in Connecticut
Connecticut has 19 upcoming half marathons over the next 12 months. October is the busiest month for them, with 7. Most are around New Haven, Madison, Milford. The next one is Faxon Law New Haven Road Race on September 7 in New Haven.
- Sep 20265 races
- Oct 20267 races
- Nov 20265 races
- Apr 20272 races
September 2026
- Mon 9/7Faxon Law New Haven Road RaceNew Haven, CT · Half Marathon · 20K · 5K · 0.5 Miles · Road · from $8 · register ↗
- Sat 9/122026 Dave Parcells Madison TriathlonMadison, CT · 16.5 Miles · 20K · 16.2 Miles · from $100 · register ↗
- Sat 9/122026 Gulf Beach Half MarathonMilford, CT · Half Marathon · register ↗
- Sat 9/26Hogsback Half MarathonColebrook, CT · Half Marathon · from $60 · register ↗
- Sun 9/27HSS Greenwich Half MarathonOld Greenwich, CT · Half Marathon · from $70 · register ↗
October 2026
- Sun 10/4Garavel SoNo Half Marathon | 5KNorwalk, CT · Half Marathon · 5K · 1 Mile · from $25 · register ↗
- Sun 10/4Norfolk Land Trust Trail Race Series/Haystack Mountain ChallengeNorfolk, CT · 5K · 10K · Half Marathon · Trail · from $25 · register ↗
- Sat 10/10Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartford, CT · Marathon · Half Marathon · 5K · registration closed · register ↗
- Sun 10/11Mohawk Mountain RaceCornwall, CT · Marathon · Half Marathon · 10K · 5K · Trail · register ↗
- Sat 10/17Tackle the Trail (TM)Northeast, CT · Marathon · Half Marathon · 10K · Trail · from $45 · register ↗
- Sun 10/18The Ridgefield Road Fest 50th Anniversary: 1/2 Marathon, 7-Miler, and The Iris Fund 5KRidgefield, CT · Half Marathon · 7 Miles · 5K · from $24 · register ↗
- Sun 10/25Reservoir Run Half Marathon, 5K, Kids Fun Runs & Family StrollWESTON, CT · Half Marathon · 5K · 1K · from $15 · register ↗
November 2026
- Sat 11/7Air Line Trail Ghost RunHebron, CT · Half Marathon · Trail · from $50 · register ↗
- Sat 11/14Hillacious Half MarathonLitchfield, CT · Half Marathon · 6.5 Miles · 4 Miles · from $50 · register ↗
- Sat 11/14Roxbury Fall ClassicRoxbury, CT · Half Marathon · Marathon · 50K · from $50 · register ↗
- Sun 11/15Tarrywile Half MarathonDanbury, CT · Marathon · Half Marathon · 10K · register ↗
- Sat 11/21Storybook Half MarathonStratford, CT · Half Marathon · registration closed · register ↗
April 2027
- Sun 4/11Ion Bank Cheshire Road RacesCheshire, CT · Half Marathon · 5K · 0.5 Miles · from $10 · register ↗
- Sun 4/18Stamford Run Club 5k/10k/Half Marathon 2026Stamford, CT · Half Marathon · registration closed · register ↗
Planning a race
- Choosing a first marathonmoving up from the half, and picking a debut race
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