Wisconsin
Wisconsin Triathlon Calendar 2026-2027
Monthly updates for Wisconsin
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Wisconsin for 2026-2027! Our updated list features 22 exciting races across the region. Find your next race in Wisconsin below and join the running community at these great events!
November 2026
An adventure race at Camp Edwards YMCA in East Troy with choose-your-own-adventure navigation and 3, 8, and 18 hour formats across the Southern Kettle Moraine.
An indoor triathlon at the RecPlex combining timed pool swim, spin bike, and treadmill run with equal scoring across the three disciplines.
December 2026
A winter map-and-compass adventure race in Merrill, WI on December 5, 2026 with 3-hour and 6-hour formats for solo racers and teams.
May 2027
One-day multisport event at UW Whitewater with triathlon, aquabike, duathlon and relay options plus adaptive divisions and live results.
An adventure race near Rib Mountain, WI on May 29 2027 with running, biking, paddling, orienteering and team challenges in 3 hour 8 hour and 18 hour formats.
Monthly updates for Wisconsin
Get new running races (and updates) in your inbox every month.
June 2027
Lake Mills Triathlon at Sandy Beach Park on 06/06/2027 features sprint individual and relay races plus a Wisconsin Triathlon Series option with listed registration fees.
Timed 24- and 36-hour solo or team triathlon relays on Washington Island featuring a 0.25 mi swim, 9.91 mi bike loop and 2.0 mi run around Gislason Beach.
Triathlon in Verona, Wisconsin with sprint and Olympic individual and relay races plus a series option at Verona Fireman's Park on June 26, 2027.
A multi-format triathlon and duathlon at Pleasant Prairie RecPlex and Prairie Springs Park on 27 June 2027 featuring sprint and Olympic distances, relays, a para sprint, collegiate races, and a charity team option.
July 2027
A triathlon at Chandler Park in Pardeeville, WI on July 10, 2027, offering sprint individual and relay formats plus a Wisconsin Triathlon Series entry.
Green Lake Triathlon on July 18, 2027 at Deacon Mills Park offers sprint and Olympic individual and relay races plus a Wisconsin Triathlon Series entry.
A multi-format triathlon at Ottawa Lake State Park on July 25 2027 offering sprint and Olympic individual and relay races plus a Wisconsin Triathlon Series entry.
A triathlon in Merrill combining a 2-mile paddle, a 17.5-mile bike on the River Bend Trail, and a 5K trail run with multiple divisions and local transitions.
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.
August 2027
Experience a scenic triathlon in Waupaca featuring a lake swim, a rolling countryside bike ride, and a fast, flat run through city streets with options for all ages and skill levels.
A one day triathlon at Belleville Community Park with sprint individual and relay options plus a Wisconsin Triathlon Series entry.
A short-course triathlon at Holiday Acres Resort in Rhinelander featuring a 300 yard swim or 1/2 mile kayak, a 10K off road bike and a 5K run, with proceeds to W.I.L.D.
September 2027
Off-road triathlon and trail runs near White Lake, WI featuring a 3-mile Class II paddle, 13-mile technical mountain bike, and rugged riverbank trail runs.
Non-timed sprint triathlon in Kewaskum with a 5K run/walk, 2 mile kayak and 12 mile bike; open to individuals or relay teams age 12 and up.
IRONMAN Wisconsin in Madison offers a lake swim, rolling bike and hilly run finishing at the Wisconsin State Capitol with large spectator crowds.