Belleville
Triathlon Calendar near Belleville 2025-2026
Monthly updates for Belleville
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Explore the top triathlons near Belleville for 2025-2026! We've gathered 4 exciting races in the area. Check out our detailed list below to find your next local race.
June 2026
Join the Wisconsin Triterium Triathlon in Verona on June 27, 2026 for sprint and Olympic distance races on a multi loop course at Fireman's Park. Expect a finisher medal, event tee, wave colored swim cap, pro timing, free photos and post race food.
July 2026
Train on Ironman Wisconsin and 70.3 swim bike and run courses with C26 coaches in Madison, July 30 to August 2 2026. Several days of coached sessions, open water swims, guided rides and team meals to sharpen race readiness.
August 2026
Take on the Sugar River Triathlon in Belleville WI on August 23, 2026 with a 1/4 mile swim, 16 mile bike and 5K run through rolling hills and gravel trails. Open to solo racers and relays with timing, finisher medal and race shirt included.
September 2026
IRONMAN 70.3 Wisconsin in Madison blends a Lake Monona swim, rolling hills bike and a waterfront run that finishes beneath the Wisconsin State Capitol. Held September 12 2026, this race is a qualifier for the 2027 IRONMAN 70.3 World Championship.