Wisconsin Triathlon Calendar 2025-2026

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Explore the best triathlons in Wisconsin for 2025-2026! Our updated list features 223 exciting races across the region. Find your next race in Wisconsin below and join the running community at these great events!

December 2025
Dec
5-6
Fr - Sa

Quiet Silence 50k

Trail Run 50 km
Dec
6
Saturday

The Guv'nor Frozen 50

Trail Run 15 km 25 km 50 km
Dec
6
Saturday

Run Santa Run Sheboygan

5 km
Dec
13
Saturday

Run Santa Run - Madison

5 km
Dec
14
Sunday

Last Call Half Marathon

5 km 10 km 13 mi
Dec
14
Sunday

Candy Cane Course - Milwaukee

5 km 12 km
Dec
20
Saturday

Stuff the Sleigh Run

5 km
Dec
31
Wednesday

New Year's Eve Chilly Chili Run

5 km
Dec
31
Wednesday

Run Into the New Year

5 km 10 km
January 2026
Jan
1
Thursday

New Year's Day Dash

2 mi 5 mi
Jan
2-4
Fr - Su

Tuscobia Winter Ultra

Trail Run 80 mi 160 mi
Jan
18
Sunday

The Big Chill

5 km 10 km
Jan
24
Saturday

Phillips Flurry 10K Race/Run/Walk

Trail Run 5 km 10 km
Jan
31
Saturday

Abominable Snow Race

Obstacle Run 2 mi 5 km 10 km 20 km
February 2026
Feb
7
Saturday

Frozen Assets Run

Trail Run 5 km
Feb
15
Sunday

Cupid Shuffle - Wauwatosa

5 km 10 km
Feb - Mar
28-1
Sa - Su

ARKTOS

Backyard Ultra 6 hr 12 hr 20 hr
March 2026
Mar
14
Saturday

Grafton Lucky 5K

5 km
Mar
15
Sunday

Luck of the Irish

5 km 10 km
April 2026
Apr
4
Saturday

DockHounds Dash

2 mi 5 km 4 mi
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