Upcoming Ultramarathons in Connecticut

Endurance Grid lists 11 ultramarathons in Connecticut in October 2026 across 2 cities.

11
Races
2
Cities

The lay of the land

Ultramarathon Races in Connecticut

The ultramarathon race calendar in Connecticut is busiest in October, with races most often in Cornwall.

What an ultramarathon is

An ultramarathon is any running race longer than 26.2 miles. The most common distances are the 50K, 50-mile, 100K, and 100-mile — alongside timed events, where you cover as much ground as you can in a fixed window like 6, 12, or 24 hours.

Many ultras run on trails, with aid stations stocked with food, water, and posted cutoff times. For most entrants the goal is to finish, not to race the clock, and hiking the climbs is a normal part of the day.

Frequently Asked Questions (FAQs)

How many ultramarathons are in Connecticut?+
Endurance Grid's Race Calendar lists 11 upcoming ultramarathons in Connecticut across 2 cities, from October 2026.
What ultramarathon distances are offered in Connecticut?+
Ultramarathons in Connecticut include 100 Mile, 100K, Other, and Ultra distances.
When is ultramarathon season in Connecticut?+
Ultramarathon season in Connecticut runs spring through fall. Of the upcoming ultramarathons on Endurance Grid's Race Calendar, the most are in October.
Which Connecticut cities have ultramarathons?+
Ultramarathons in Connecticut are held in Cornwall and Mohawk Mtn Ski Area, Cornwall.

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