Triathlons in Wisconsin

Wisconsin has 28 upcoming triathlons scheduled for 2026. That is the 5th-highest event count for triathlons of any state. Two months carry most of the calendar: August (19) and September (6) together account for 89% of races (25 of 28). No single city dominates the calendar. Waupaca leads with 4 races, followed by Brookfield (2), Oregon (2), and Pleasant Prairie (2). The remaining 64% of the calendar is spread across smaller cities.

Triathlons by month in Wisconsin

Aug (19) · Sep (6) · Jul (2) · Jun (1)

Showing 24 of 28

Triathlon

Tri-ing for a Cure/Tri-ing for Children's Triathlon

Dousman, WI

Triathlon

Tri-ing for a Cure/Tri-ing for Children's Triathlon

July 29, 2026

Dousman, WI

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Triathlon

C26 Wisconsin Triathlon Camp '26

July 30, 2026

Madison, WI

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Triathlon

Phelps Twin Triathlon

Phelps, WI

Triathlon

Phelps Twin Triathlon

August 1, 2026

Phelps, WI

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Triathlon

Emplify Health by Bellin Kids Triathlon

Onconto, WI

Triathlon

Emplify Health by Bellin Kids Triathlon

August 1, 2026

Onconto, WI

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Triathlon

Tri Faster SwimRun

Brookfield, WI

Triathlon

Tri Faster SwimRun

August 6, 2026

Brookfield, WI

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Triathlon

Oregon Kids Triathlon

Oregon, WI

Triathlon

Oregon Kids Triathlon

August 7, 2026

Oregon, WI

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Triathlon

Oregon Kids Triathlon

August 8, 2026

Oregon, WI

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Triathlon

USA Triathlon Nationals

Milwaukee, WI

Triathlon

USA Triathlon Nationals

August 8, 2026

Milwaukee, WI

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Triathlon

TOSA Youth Tri

August 8, 2026

Wauwatosa, WI

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Triathlon

Wisconsin Women's Triathlon

August 9, 2026

Pleasant Prairie, WI

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Triathlon

Running Bear Triathlon

Three Lakes, WI

Triathlon

Running Bear Triathlon

August 9, 2026

Three Lakes, WI

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Triathlon

Waupaca Area Triathlon

August 14, 2026

Waupaca, WI

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Triathlon

2026 Waupaca Area Triathlon - SATURDAY

Waupaca, WI

Triathlon

2026 Waupaca Area Triathlon - SATURDAY

August 15, 2026

Waupaca, WI

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Triathlon

2026 Waupaca Area Triathlon - SATURDAY

Waupaca, WI

Triathlon

2026 Waupaca Area Triathlon - SATURDAY

August 15, 2026

Waupaca, WI

September 13, 2026

Kewaskum, WI

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Triathlons in Nearby States

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Frequently asked questions

What are the standard triathlon distances?▾

The main distances are Sprint (750m swim, 20K bike, 5K run), Olympic (1.5K swim, 40K bike, 10K run), Half-Ironman/70.3 (1.2mi swim, 56mi bike, 13.1mi run), and full Ironman (2.4mi swim, 112mi bike, 26.2mi run). Browse all distances on RACE.

What do I need for my first triathlon?▾

At minimum you need a swimsuit, goggles, a road or tri bike, helmet, running shoes, and a race belt for your number. Many beginners start with a sprint triathlon, which can be completed in 1-2 hours.

What is the difference between sprint and Olympic triathlon?▾

A sprint triathlon is roughly half the distance of an Olympic triathlon. Sprints typically take 1-1.5 hours while Olympic distance races take 2-3.5 hours. Sprints are ideal for beginners.

How do I qualify for the IRONMAN World Championship?▾

Athletes qualify by earning a slot at an IRONMAN-branded qualifying race. Each full IRONMAN event allocates slots to age group winners. The World Championship is held annually in Kailua-Kona, Hawaii.

What are the biggest triathlons in the US?▾

The SuperTri Chicago Triathlon is the largest single triathlon event with 8,000+ athletes. IRONMAN events in Texas, Florida, Lake Placid, and Arizona draw thousands. Escape From Alcatraz is a bucket-list race. Find them all on RACE.

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