Massachusetts Triathlon Calendar 2025-2026

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Explore the best triathlons in Massachusetts for 2025-2026! Our updated list features 199 exciting races across the region. Find your next race in Massachusetts below and join the running community at these great events!

April 2026
Apr
11
Saturday

Spring Fever 5K | 5M | 8H

Trail Run 5 km 5 mi 8 hr
Apr
11
Saturday

The Team Hoyt Memorial

2 mi 5 mi
Apr
12
Sunday

Marblehead Half Marathon

13 mi
Apr
20
Monday

Boston Marathon

Apr
24-25
Fr - Sa

Ruck4hit

200 mi
Apr
25
Saturday

TARC Spring Classic

Trail Run 10 km Half Marathon Marathon 50 km
Apr
25
Saturday

Ipswich Ale Half Marathon

Half Marathon
Apr
25
Saturday

Great Woods Marathon

2 mi Marathon
Apr
26
Sunday

James Joyce Ramble 10 Km

10 km
Apr
26
Sunday

MV Spring Classic Marathon

Half Marathon Marathon
May 2026
May
2
Saturday

Rally for Research

5 km
May
2
Saturday

Gator Gallop 5K

5 km
May
3
Sunday

Cahill 5k Race

5 km
May
3
Sunday

Twin Lights Half Marathon

13 mi
May
3
Sunday

Runway 5k - Northampton

May
3
Sunday

Worcester Cinco 5K

5 km
May
3
Sunday

Step Up for Colleen 5K

5 km
May
3
Sunday

Dandelion Dash

Trail Run 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
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