Connecticut · Ultra

2026-2027 Ultramarathons in Connecticut

Every upcoming Ultra in Connecticut, all 3 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.

3 upcoming ultramarathons

5K Races 11210K Races 6Half Marathons 7
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Connecticut Ultramarathons by City

Mohawk Mtn Ski Area, Cornwall 2Roxbury 1

The Next Ultra Marathons in Connecticut

3 total
Sat, Nov 14, 2026Roxbury Fall Classic Roxbury, CTHalf MarathonMarathon50KFrom $125Details Thu, Jun 3, 2027IronHike Mohawk Mountain Spring Series 2027 Mohawk Mtn Ski Area, Cornwall, CT29 Miles100 Miles15 Miles28.75 MilesFrom $360Details Thu, Oct 7, 2027IronHike Mohawk Mountain Fall Series 2027 Mohawk Mtn Ski Area, Cornwall, CT29 Miles100 Miles15 Miles28.75 MilesFrom $360Details

How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Oct 25, 2026.

Common Questions About Running an Ultra in Connecticut

Which Connecticut cities have the most ultramarathons?

Mohawk Mtn Ski Area, Cornwall (2), Roxbury (1) lead the state for Ultra races. Those give you the most dates to choose from if your schedule is tight.

Are there trail Ultra races in Connecticut?

Yes, 2 races around Connecticut get you off the pavement: 1 is a trail race, and 1 mixes road and trail.