Maine Triathlon Calendar 2025-2026

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Explore the best triathlons in Maine for 2025-2026! Our updated list features 91 exciting races across the region. Find your next race in Maine below and join the running community at these great events!

May 2025
May
17
Saturday

Bethel Rotary 5k

Trail Run 5 km
May
18
Sunday

The Great World Peace 5K

5 km
May
24-25
Sa - Su

Trail Festival At Pineland Farms

Trail Run 5 km 10 km ... 100 km 30 hr
May
26
Monday

Old Town - Orono YMCA Memorial Day 5k Run/Walk

5 km
June 2025
Jun
1
Sunday

Acadia Half Marathon

10 km 13 mi
Jun
1
Sunday

Great Bangor Marathon & Half

13 mi 26 mi
Jun
1
Sunday

Maine Running Hall of Fame 5K

5 km
Jun
7
Saturday

Shipyard Old Port Half Marathon

5 km 13 mi
Jun
8
Sunday

Cobscook Bay Road Races 10k

5 km 10 km
Jun
8
Sunday

Luv 2 Run Portland

5 km
Jun
14
Saturday

Close to the Coast 10K

5 km 10 km
Jun
15
Sunday

Raccoon Run

5 km
Jun
19
Thursday

Gorham 4-Miler

4 mi
Jun
20
Friday

Longest Day 5K - Gray

Trail Run 5 km
Jun
21
Saturday

Six at the Springs

Trail Run 4 mi
Jun
28
Saturday

South Berwick Strawberry Run

2 mi 5 mi
Jun
29
Sunday

Sebago Lake Triathlon

Triathlon
Jun
29
Sunday

Charles E Davis Independence Run

4 mi 7 mi
July 2025
Jul
4
Friday

Stars & Stripes 5K Run/Walk

5 km
Jul
4
Friday

Bridgton 4 Road Race

4 mi
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