Iowa Triathlon Calendar 2025-2026

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Explore the best triathlons in Iowa for 2025-2026! Our updated list features 103 exciting races across the region. Find your next race in Iowa below and join the running community at these great events!

December 2025
Dec
6-7
Sa - Su

Hitchcock Experience Endurance Runs

Trail Run 13 mi 50 mi 101 km 100 mi
Dec
31
Wednesday

The Critter

Backyard Ultra 4 hr 8 hr 12 hr
May 2026
May
2-3
Sa - Su

Des Moines Women's Half Marathon

5 km 5 mi 10 km 13 mi
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