Connecticut Ultramarathons
16 upcoming ultras across Connecticut, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: ultras in Connecticut
Connecticut has 16 upcoming ultras over the next 12 months. Among complete calendar months, April 2027 has the most listed races, with 5. Most are around Hamden, Stratford, Roxbury. The next one is Roxbury Fall Classic on November 14 in Roxbury.
- Nov 20261 race
- Dec 20262 races
- Mar 20271 race
- Apr 20275 races
- May 20273 races
- Jun 20272 races
- Oct 20272 races
November 2026
- Sat 11/14Roxbury Fall ClassicRoxbury, CT · Half Marathon · Marathon · 50K · from $50 · register ↗
December 2026
- Sat 12/5Tower Tag ChallengeHamden, CT · 8 Hour · 4 Hour · register ↗
- Sun 12/27The West Rock Winter Fat Ass ExtravaganzaHamden, CT · 8 Hour · register ↗
March 2027
- Sat 3/20Enchanted Forest Ultra RunStratford, CT · 3 Hour · 6 Hour · Trail · register ↗
April 2027
- Sun 4/4Sleeping Giant Trail RunsHamden, CT · 50K · 25K · Trail · register ↗
- Sat 4/17Traprock 50Bloomfield, CT · 50K · 17K · register ↗
- Sat 4/24Lake Mohegan Trail RaceFairfield, CT · 10K · 5K · 4 Hour · Trail · register ↗
- Sun 4/25Jack Bristol Lake Waramaug Ultra RacesKent, CT · 100K · 50 Mile · 50K · register ↗
- Fri 4/30The CT123East Thompson, CT · 200K · register ↗
May 2027
- Sat 5/1Cinco de Zakito 12-Hr Endurance RunKillingworth, CT · 12 Hour · register ↗
- Sat 5/15Forgotten Forest Ultra RunStratford, CT · 9 Hour · Trail · register ↗
- Sat 5/22Run Ragged Last Person StandingBerlin, CT · Timed · register ↗
June 2027
- Thu 6/3IronHike Mohawk Mountain Spring Series 2027Mohawk Mtn Ski Area, Cornwall, CT · 29 Miles · 100 Mile · 15 Miles · 28.8 Miles · 43.8 Miles · Trail · from $180 · register ↗
- Thu 6/24Centurion Ultra Trail EventStratford, CT · 72 Hour · Trail · register ↗
October 2027
- Thu 10/7IronHike Mohawk Mountain Fall Series 2027Mohawk Mtn Ski Area, Cornwall, CT · 29 Miles · 100 Mile · 15 Miles · 28.8 Miles · 43.8 Miles · Trail · from $180 · register ↗
- Sun 10/17Bimblers Bluff 50KGuilford, CT · Ultra · 50K · register ↗
Planning a race
- The adventure listrim to rim, the big rounds, and routes worth planning a year around
- Getting inhow entry works for the races that sell out or ballot
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