Trailbreaker
Trailbreaker logo

Trailbreaker

Waukesha, Wisconsin, United States View on map
Apr 04, 2027 (America/Chicago local time)
Running

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

Apr 04, 2027 Marathon 8:00 AM
$70.00
Open

The RAD

Apr 04, 2027 32.2K 8:00 AM
$70.00
Open

Half Marathon

Apr 04, 2027 Half-Marathon 8:00 AM
$50.00
Open

Half Marathon Ruck

Apr 04, 2027 Half-Marathon 8:00 AM
$50.00
Open

10K

Apr 04, 2027 10K 8:15 AM
$32.50
Open

5K

Apr 04, 2027 5K 8:15 AM
$32.50
Open

10K Ruck

Apr 04, 2027 10K 8:15 AM
$32.50
Open

5K Ruck

Apr 04, 2027 5K 8:15 AM
$32.50
Open

Kiddos 1K

Apr 04, 2027 1K 7:45 AM
Free
Open

Walking

Walk

Apr 04, 2027 3K 8:15 AM
$32.50
Open

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.

Temp (°C)
Minimum temperature (race-week average) 0.8° / Maximum temperature (race-week average) 11.1°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) -4.4° / Maximum feels like — heat index / wind chill (race-week average) 9.5°
Peak wind (km/h)
Strongest wind of the day (race-week average)
22.5
Precip (mm)
Precipitation over the day (race-week average)
4.4mm
Humidity
Mean relative humidity (race-week average)
70.1%
Sunrise
Sunrise at the start line on April 4, 2027 (CDT)
Sunset
Sunset at the start line on April 4, 2027 (CDT)
Daylight
Hours between sunrise and sunset on race day
12h 52m

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

2026 edition View Results
2025 edition View Results
2024 edition View Results
2023 edition View Results
2022 edition View Results
2021 edition View Results
2019 edition View Results

Other races near Waukesha

Different organizers, within 40 miles, in the next three months

Find upcoming events by distance:

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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