Triathlon Calendar United States 2025-2026

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Explore the best triathlons in the United States for 2025-2026! Our updated list features 8436 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

June 2025
Jun
9
Monday

Roxbury Community Benefit 5k

5 km
Jun
9
Monday

RunNC

13 mi 26 mi
Jun
10
Tuesday

Tuesday Night 5k

5 km
Jun
10
Tuesday

IHR Pizza Run

5 km
Jun
10
Tuesday

Woodland Park Zoom

5 km 10 km
Jun
10
Tuesday

Catamount Weekly Trail Running Race

Trail Run 5 km
Jun
10
Tuesday

Winding Trails Sprint Triathlon

Triathlon
Jun
10
Tuesday

East Glacier Trail Tangle

Trail Run 4 mi
Jun
11
Wednesday

ESTRS French 5KM

Trail Run 5 km
Jun
11
Wednesday

Flag Day 5K

2 mi 5 km
Jun
11
Wednesday

Black Star Canyon 5k Trail Run

Trail Run 5 km
Jun
11
Wednesday

LIRRC Wednesday Night Summer Series

5 km
Jun
12-13
Th - Fr

Heat Wave 24

Backyard Ultra 6 hr 12 hr 24 hr
Jun
12
Thursday

Hollis Fast

5 km
Jun
12
Thursday

Hustle for the House - Middletown 5K

5 km
Jun
12
Thursday

El Dredge Fun(d) Run

5 km
Jun
12
Thursday

David Lerner Associates Long Island Police Appreciation Run 5K

5 km
Jun
12
Thursday

Run with the Herd

5 km
Jun
12
Thursday

Family Fun Color Fun Run

Jun
12-22
Th - Su

Heart of the South Road Race

400 mi
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