Connecticut Running Races

176 upcoming races across Connecticut in the next 12 months, from local 5Ks to marathons and ultras. Updated nightly. Want filters, maps, and radius search? Open Connecticut in the Race Finder.

By distance: Half Marathons · 5K Races · 10K Races · Ultras

By city: Stratford · Hamden

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Racing in Connecticut: what the calendar looks like

There are 176 races on the Connecticut calendar over the next 12 months, which works out to roughly 3 per week. Among complete calendar months, December 2026 has the most listed races (26); February 2027 has the fewest (3). The busiest places to race are Stratford (8), Hamden (8), Fairfield (6).

Of those, 108 offer a 5K, 27 offer a 1 Mile and 15 offer a Half Marathon. The next marathon is Roxbury Fall Classic on November 14 in Roxbury. The next half marathon is Hillacious Half Marathon on November 14.

By race count Connecticut ranks 30th of 51 states and DC.

Races by month

Marathons in Connecticut

Connecticut has 3 marathons coming up in the next 12 months. First up is Roxbury Fall Classic on November 14, 2026 in Roxbury; after that come Tarrywile Half Marathon (Sun 11/15, 2026), Tackle the Trail (TM) (Sat 10/16, 2027).

November 2026

December 2026

January 2027

February 2027

March 2027

April 2027

May 2027

June 2027

July 2027

August 2027

September 2027

October 2027

Planning a race

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