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Marathons in Connecticut

As of October 6, 2026, Crewable lists 5 upcoming marathons in Connecticut from October 2026 to November 2026. The next is Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K on October 10 in Hartford. Registration is open for 3. 2 advertise prize money.

Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites

Race calendar

October 2026

3 races

  2. Mohawk Mountain Race

    Cornwall, CT6,338 ft gain
    MarathonHalf Marathon+2
    Open until Oct 10from $40

November 2026

2 races

Quick answers

What is the next marathon in Connecticut?

Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K, on Saturday, October 10, 2026, in Hartford. Distances: Marathon, Half Marathon, 5K.

How many marathons in Connecticut have open registration?

3 of the 5 list registration as open as of October 6, 2026, including Mohawk Mountain Race, Roxbury Fall Classic and Tarrywile Half Marathon.

Which marathons in Connecticut offer prize money?

2 races advertise prize money.

What is the busiest month for marathons in Connecticut?

October 2026, with 3 of the 5. November 2026 follows with 2.

Neighboring states

Massachusetts89New York8Rhode Island19

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