Waterloo
Triathlon Calendar near Waterloo 2026-2027
Monthly updates for Waterloo
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Waterloo for 2026-2027! We've gathered 8 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
Multi day ANVIL ultra triathlons at Ottawa Lake State Park with looped course, on course aid village, personal crew access and 24 hour medical support.
IRONMAN 70.3 Wisconsin is a 70.3-mile triathlon in Madison featuring a swim in Lake Monona, a rolling bike course and a waterfront run finishing by the State Capitol.
IRONMAN Wisconsin in Madison is an IRONMAN triathlon with a lake swim, rolling bike, hilly run and a Capitol finish, noted for strong spectator support.
Multi format triathlon and duathlon day at UW Whitewater on September 27, 2026 featuring Olympic, Sprint, Super Sprint, aquabike, duathlon and relay options.
June 2027
Triathlon at Sandy Beach Park in Lake Mills on June 6, 2027, featuring sprint individual and relay races plus a Wisconsin Triathlon Series entry.
Monthly updates for Waterloo
Get new running races (and updates) in your inbox every month.
July 2027
Pardeeville Triathlon on 07/10/2027 at Chandler Park features a 400 m swim, 15 mile bike and 5 km run with individual, relay and series entry options.
A triathlon at Ottawa Lake State Park on July 25, 2027, featuring sprint and Olympic individual and relay races plus a series entry.
Lake Country Triathlon in Oconomowoc WI on July 31, 2027 offers Sprint, Olympic and Half Iron individual and relay races with a lake swim, scenic bike, and town run.