Trailbreaker
About this race
The Trailbreaker is Waukesha’s signature running event, proudly held every year since 1993. What began as the vision of three passionate local runners has grown into a celebrated tradition that brings the community together each spring.
Originally featuring a Marathon, Half-Marathon, 5K Run, and 2-Mile Walk, the Trailbreaker offers something for everyone — from seasoned marathoners to families looking for a fun and active day out.
Since 2009, the event has been hosted by the Park Foundation of Waukesha, Inc. as a fundraiser supporting the enhancement of city parks, trails, recreation programs, and Waukesha’s urban forest.
In 2023, Silver Circle Sports Events, LLC (SCSE) partnered with the Park Foundation under a long-term agreement to manage all aspects of the Trailbreaker. This collaboration ensures the event will continue to grow while staying true to its community roots and mission.
Whether you’re chasing a PR or just enjoying the route, the Trailbreaker is more than a race — it’s a Waukesha tradition. 🏃♀️🌳
Charity Partner - Park Foundation of Waukesha
Over $200,000 has been generated and re-invested with the Parks, Recreation, and Forestry Department to "make Waukesha a better place to live, work and play". The PFW Inc. is a 501(c)3 organization that utilizes funds raised to promote "Community Quality of Life". All staff are unpaid volunteers. Please consider making a donation!
This event provides distances for all runners! Come join the fun and support our local parks and community!
Pick your distance
Running
Marathon
The RAD
Half Marathon
Half Marathon Ruck
10K
5K
10K Ruck
5K Ruck
Kiddos 1K
Walking
Walk
Typical race-day weather
Based on 9 years of Open-Meteo archive data for this event's race dates in Waukesha, plus the 3 days either side.
The sun rises at 6:29 AM and sets at 7:22 PM local time (CDT) in Waukesha on April 4, 2027 — 12h 52m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Results — Trailbreaker
Other races near Waukesha
Different organizers, within 40 miles, in the next three months
Tombstone Trot
Last Call 5K, 10K, and 1/2 Marathon
Warrior 5K & 8K...Through The Park
Jingle Bell 5K Hustle & 1K Dash
🏃 Plan Your Next Race in Waukesha
Find upcoming events by distance:
- Waukesha 5K Races 7 races
- 10K Run Events in Waukesha 5 races
- Waukesha Half Marathons 5 races
- Waukesha Running Calendar 2026 9 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 9 Waukesha events
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