There are 329 running races in Massachusetts in 2026 across 180 cities. The next upcoming race is the LT Fitness Summer Nights Experience In Partnership with DCR in Dorchester Center on July 20. Popular distances include 5K races, half marathons, 10K races.

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APPLEMAN TRIATHLON/DUATHLON/AQUABIKE CHARITY RACE

Sun, Jul 19 · Littleton, MA Littleton
Triathlon AquaBike .5 Mile Swim and 10 Mile BikeSprint Triathlon (.5 Mile Swim, 10 Mile Bike, 3.0 Mile Run)Sprint Triathlon Relay (.5 Mile Swim, 10 Mile Bike, 3 Mile Run) - ONLY ONE RELAY MEMBER NEEDS TO REGISTER! SEE NOTE BELOW! +1

Amity Island 5K & Fun Run

Sun, Aug 2 · Edgartown, MA Edgartown
Virtual Amity Island 5KAmity Island 5K VIRTUALAmity Island Fun Run (for kids 8 and younger)

Gibbet Hill Cattle Run 2026

Wed, Aug 5 · Groton, MA Groton
OCR Little Lambs Mini Run (Ages 5 & Under)Little Lambs Mini Run (Ages 6-8)Cattle Run Age 12 & Under Single Loop +1

Duck Drop

Sat, Aug 8 · Scituate, MA Scituate
2nd Annual Scituate Duck Drop

MIHEI Strides 5k

Sat, Aug 22 · Brighton, MA Brighton
Road MIHEI 2.5K FundraiserMIHEI 5K FundraiserMIHEI 5K Fundraiser Merch Package!