Welcome to the Wisconsin Trail Series!
The Wisconsin Trail Assail Series includes seven races held in Waukesha County and Wisconsin State Parks. Participants can run various distances, including 5K, 10K, and half marathon, and you can change your distance anytime for free!
This registration is for the full series. Don't miss out on the kid's race either – it's free! Click on individual race links for details and registration.
Race Schedule
Start: Fri April 11, 2025
End: Sat October 18, 2025
Courses
- WTA 5K Series - Prices: $160.00 to $205.00
- WTA 5K Walk Series - Prices: $160.00 to $205.00
- WTA 10K Series - Prices: $160.00 to $205.00
- WTA Half Series - Distance: 13.1 Miles, Prices: $160.00 to $205.00
Our events come with a satisfaction guarantee - if you're not satisfied with our trail events, we'll refund your entrance fee!
