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Trail Running Calendar near Groton 2025-2026

Explore the top trail runs near Groton for 2025-2026! We've gathered 107 exciting races in the area. Check out our detailed list below to find your next local race.

April 2026
Apr
11
Saturday

Merrimack River Trail Race

Trail Run 10 mi
Apr
25
Saturday

TARC Spring Classic

Trail Run 10 km 21 km 42 km 50 km
May 2026
May
3
Sunday

Worcester Cinco 5K

3 mi
May
9
Saturday

Tarc Wapack and Back

Trail Run 22 mi 43 mi 50 mi
May
9
Saturday

Grafton Gazebo Road Race

5 km
May
30
Saturday

Wildcat 5K Trail Run-Walk-Wag

Trail Run 5 km
June 2026
Jun
11
Thursday

Hollis Fast

5 km
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