Trailbreaker

Waukesha, United States • 29 Mar 2026

Event overview

The Trailbreaker is scheduled for March 29, 2026 in Waukesha, WI at Schuetze Recreation Center, 1120 Baxter Street. The event has been held annually since 1993 and has been hosted by the Park Foundation of Waukesha, Inc. since 2009. Silver Circle Sports Events, LLC manages the race under a long-term agreement begun in 2023. Proceeds support city parks, trails, recreation programs, and the urban forest; over $200,000 has previously been generated and reinvested.

Distances offered:

  • Marathon
  • Half Marathon
  • 10K
  • 5K
  • Walk
  • Kiddos 1K
  • 5K Ruck
  • 10K Ruck
  • Half Marathon Ruck
  • The RAD (Run Any Distance)

The Kiddos 1K has a $5 entry fee; participants receive a race bib and a finisher medal and registration is required. The RAD provides timing, course support, swag, and snacks but does not include age-group awards.

Course, services, and logistics

The Marathon uses the Glacial Drumlin Trail course and is USATF certified. The route includes approximately 6 miles of city streets and sidewalks and 20 miles of paved trails, including the Fox River Trail and the Glacial Drumlin Trail, and passes through Frame Park, Veterans Park, Grede Park, Bethesda Park, and the Fox River Sanctuary. Aid stations are located approximately every 2 miles at Trail & MacArthur, Trail & Les Paul Highway, Trail & Waukesha DT, Trail & Mickle Road, and Trail & Waterville Road. Packet pickup requires participants to present their registration receipt QR code on a mobile device or as a saved image. Pets are not allowed. Finisher awards and participant keepsakes are wooden pieces produced by Ridgeway Woodworks. Rucking events are new for 2026 and involve walking or hiking with a weighted backpack. Visit the organization's website for the most recent information.

Race information

Marathon
Marathon
Half Marathon
Half Marathon Ruck
Half Marathon
Half Marathon
10 km
10k
10 km
10k Ruck
5 km
5 km
5k Ruck
Kiddos 1k
The Rad
Walk
Visit the organization's website for the most recent information.
Trail runs nearby

Take on the Whitewalker Ultra 100k in Palmyra WI, a two loop 100k over scenic Ice Age Trail and Scuppernong trails. Expect rugged single track, aid stations on course, and a 24 hour finish limit for a true winter challenge.

Explore seven walker friendly trail races across Waukesha County and Wisconsin state parks from April to October 2026. Choose 5K 10K half marathon or ruck distances, bring reusable hydration, and chase series points into a final championshi..

Challenge yourself on the scenic Kettle Moraine trails in LaGrange WI with distances from 38 miles to the full 100 miler and team relays. A largely Ice Age Trail course and Western States qualifying time make this a classic ultrarun.

Take on rolling hills and changing trail footing along a scenic Ice Age Trail section at Rice Lake Nature Trail in Whitewater, WI on June 20, 2026. Choose 10K, half marathon or 50K for a rewarding summer trail challenge.