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Triathlon Calendar near Polk County 2027

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Explore the top triathlons near Polk County for 2027! We've gathered 3 exciting races in the area. Check out our detailed list below to find your next local race.

June 2027
Jun
7-11
Mo - Fr

Endure Ultra Triathlon - Big Creek State Park

Triathlon Duathlon Full distance 2.4 112 26.2 mi Full distance 4.8 224 52.4 mi Full distance 7.2 336 mi Full distance 336 78.6 mi
Multi-day ultra-triathlon series at Big Creek State Park, Iowa, offering distances from 140.6 to 703 miles plus aquabike and duathlon options.
Jun
19
Sa

Trestle Hustle

Duathlon 5 km 10 km
Annual community race on the High Trestle Trail with 5K, 10K, duathlon and virtual options; 208 athletes participated in 2026 to support the Boone County Hospital Foundation.
Jun
27
Su

Ames Triathlon

Triathlon Aquabike (swim and bike) 750 m 15.5 mi Sprint 750 m 15.5 3.1 mi Duathlon (Run, Bike, Run) 1.25 15.5 3.1 mi
A multi-discipline event at Ada Hayden Lake on June 27, 2027 featuring triathlon, relay, paratriathlon, aquabike, duathlon and a swim-only race; the event is chip timed and part of the Heart of America Triathlon Series.
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