Wisconsin Trail Series
Decision scores
Six 0–100 scores telling you, at a glance, who this race is for.
Best for
About the Race
Welcome to the Wisconsin Trail Assail Series! 🌲🏃♂️🏃♀️ 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 terrai...
Course Profile
Course profile data unavailable for this race.
Course features
Accessibility & inclusion
Vibe & community
We don't have vibe tags for this race yet — organizers can claim the listing to add them.
History & past results
Past finisher times and year-over-year participation will appear here once the organizer publishes them.
Reviews
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Common questions
How hard is the Wisconsin Trail Series 5K?
We don't have a verified elevation profile yet — check the organizer's course map for the climb breakdown.
What should I wear?
Dress for ~10°F warmer than the standing temperature once you start running. Throwaway long-sleeve at the start, gloves and a hat for sub-50°F mornings, singlet plus visor when it climbs above 60°F. The race-day forecast above is the source of truth closer to the date.
When does it sell out?
No published deadline. Most races raise the entry fee in tiers and can sell out without warning — sign up early if you're committed.
Similar races worth a look
- More like this in this city: All 5K races in Oconomowoc, WI
- Same distance, same month: Best 5K races in April
- Same distance, statewide: All 5K races in Wisconsin
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