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Obstacle Race Calendar near Groton 2025-2026

Explore the top obstacle runs near Groton for 2025-2026! We've gathered 74 exciting races in the area. Check out our detailed list below to find your next local race.

May 2026
May
3
Sunday

Step Up for Colleen 5K

5 km
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
7
Sunday

Worcester Firefighters 6K

3 km 6 km
Jun
11
Thursday

Hollis Fast

5 km
Jun
20
Saturday

Against the Tide Hopkinton

Triathlon
Jun
20
Saturday

Hopkinton against the Tide

Multisport
September 2026
Sep
5
Saturday

TARC Fall Classic

Trail Run 10 km Half Marathon ... 50 km 50 mi
Sep
13
Sunday

Dracut Old Home Day 5K Run/Walk

5 km
October 2026
Oct
3
Saturday

Friends of the Poor 5K

5 km
Oct
4
Sunday

Davis Hill Dragon Dash

5 km
Oct
4
Sunday

Groton Town Forest Trail Races

Trail Run 3 mi 10 mi
Oct
10-11
Sa - Su

Midstate Massive Ultra Trail

Trail Run 50 km 50 mi 100 mi
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