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Running calendar near Groton 2025-2026

Explore the top running races near Groton for 2025-2026! We've gathered 16 exciting races in the area. Check out our detailed list below to find your next local race.

May 2025
May
18
Sunday

New England Season Opener

Triathlon
May
18
Sunday

Great Bear Run

5 km
May
24
Saturday

Health is Wealth Race

5 km
June 2025
Jun
12
Thursday

Hollis Fast

5 km
Jun
14
Saturday

Vanessa T. Marcotte Foundation 5K

5 km
Jun
29
Sunday

Summer Classic

5 km
July 2025
Jul
4
Friday

Merrimack Sparkler 5k Run/Walk

5 km
September 2025
Sep
7
Sunday

Title 9 Women's Triathlon

Triathlon
Sep
14
Sunday

Ride for Liv / Run for Liv

5 km 10 km
Sep
20
Saturday

Bedford Day 5K

5 km
October 2025
Oct
5
Sunday

Groton Town Forest Trail Races

Trail Run 3 mi 9 mi
Oct
11-12
Sa - Su

Midstate Massive Ultra Trail

Trail Run 30 mi 50 mi 100 mi
Oct
18-19
Sa - Su

Ghost Train Trail Races

Trail Run 15 mi 30 mi 30 hr
Oct
19
Sunday

Baystate Marathon

21 km 42 km
Oct
19
Sunday

Scaredy Cat 5K

5 km
November 2025
Nov
1
Saturday

The Hamsterwheel - New Boston, NH

Trail Run 6 hr 12 hr 24 hr 30 hr
Nov
9
Sunday

Boston River Run

5 km
December 2025
Dec
7
Sunday

Winter Classic

5 km
Dec
7
Sunday

Woo Jingle 5K

5 km
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