Massachusetts Running Races

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

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

By city: Boston · Worcester

Racing in Massachusetts: what the calendar looks like

There are 331 races on the Massachusetts calendar over the next 12 months, which works out to roughly 6 per week. Among complete calendar months, November 2026 has the most listed races (134); February 2027 has the fewest (1). The busiest places to race are Boston (16), Worcester (8), Hingham (6).

Of those, 242 offer a 5K, 43 offer a 1 Mile and 27 offer a Half Marathon. The next marathon is Tough Ruck Boston 26.2 For The Fallen on April 18 in Concord. The next half marathon is Cambridge Half Marathon + 5K on October 31.

By race count Massachusetts ranks 17th of 51 states and DC.

Races by month

Going deep on one race

Boston Marathon: the complete guide

The course mile by mile, where to stay near the start, the expo, where to watch, and the whole race weekend planned out.

Boston Marathon: fly the course in 3D

Fly the full course in 3D over real buildings, bridges and terrain, with the elevation profile, every named climb, and typical race day weather.

October 2026

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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