Maine Triathlon Calendar 2025-2026

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Explore the best triathlons in Maine for 2025-2026! Our updated list features 77 exciting races across the region. Find your next race in Maine below and join the running community at these great events!

July 2025
Jul
4
Friday

Stars & Stripes 5K Run/Walk

5 km
Jul
4
Friday

Bridgton 4 Road Race

4 mi
Jul
4
Friday

L.L.Bean 10K

10 km
Jul
6
Sunday

Charles E Davis Independence Run

4 mi 7 mi
Jul
11
Friday

Kennebunk Free Library 5K

5 km
Jul
12
Saturday

Back Cove Backyard Ultra

Backyard Ultra 4 mi
Jul
13
Sunday

Windham Center 5K

5 km
Jul
19
Saturday

Drakes Island Road Race

5 km
Jul
26
Saturday

Tough Mountain Challenge

Obstacle Run
Jul
26
Saturday

Casco Days Road Race

4 mi
Jul
27
Sunday

Ironman 70.3 Maine

Triathlon
Jul
27
Sunday

Scribners Mill 5k

Trail Run 5 km
August 2025
Aug
2
Saturday

Blue Hill Mountain Trail Fest

Trail Run 5 km 10 km 25 km 50 km
Aug
2
Saturday

Beach to Beacon 10k

10 km
Aug
3
Sunday

Blue Lobster 4-Miler

4 mi
Aug
9
Saturday

Ruck for the Fallen

Obstacle Run 10 km
Aug
9
Saturday

Dole 3 Miler

3 mi
Aug
16
Saturday

Breakaway 5K

5 km
Aug
17
Sunday

The Great Loon Triathlon

Triathlon
Aug
23
Saturday

Firebird Trail Races

Trail Run 13 mi 26 mi 50 km
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