Wisconsin Trail Series – Oconomowoc, WI 2026
Date
April 10, 2026
Location
Oconomowoc, WI
Venue
1327 Wall Street
Start Time
9:00 AM
Entry Fee
$160.00 – $205.00
Events
WTA 5K Series, WTA 5K Walk Series, WTA 10K Series, WTA Half Series, 5K Ruck Series, 10K Ruck Series
Includes
T-Shirt
Register NowRegistration Open
Welcome to the Wisconsin Trail Assail Series! ♂️ ♀️ March 30, 2026 T-Shirt Update: Participants who register after March 29, 2026 will not receive a T-shirt for the first event. If you would like a shirt for future races, please select Registered After T-Shirt Deadline during registration. If you would prefer the pass without a shirt, please select All Access No Shirt. After Run from the Tax Man, we will follow up with anyone selecting the shirt option to confirm shirt size. Experience seven races over seven months—building to an epic series finale. The Wisconsin Trail Assail tours some of the most scenic routes in Waukesha County and Wisconsin State Parks, with courses for every level. Pick your challenge each month: 5K, 10K, or Half Marathon. Run it, walk it, chase a PR, or just collect trail miles with friends—the series is proudly walker-friendly. Why you’ll love it: Varied terrain and views all season long Consistent, well-marked courses and friendly vibes A series-ending cham
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