The Trailbreaker

Waukesha, WI, USAMarch 29, 2026
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partly-cloudy-day Partly cloudy throughout the day.

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The Trailbreaker is Waukesha's home grown running event and has been held annually since 1993. This Waukesha tradition initially consisted of a Marathon, Half-Marathon, and 5K Run/Walk. Both Marathon courses are certified by the USATF and may provide qualifying credentials for other races. We are excited to once again offer a 10K event at the Trailbreaker. The Trailbreaker originally was the brainchild of three running colleagues (amigos). Since 2009, the Park Foundation of Waukesha, Inc. (PFW Inc.), has organized and hosted this annual event as a fundraiser for the enhancement of city parks, trails, recreation programs and the urban forest. Source

Area Map

Course Maps

FAQ

When is the 2026 The Trailbreaker?

The 2026 The Trailbreaker will be held on Sunday March 29, 2026.

Is the The Trailbreaker a Boston Marathon Qualfier?

Yes, the The Trailbreaker is an official Boston Marathon qualifier.

Community

Historical Weather & Results

RunScore
Run Score: 8
Temp
44°F
Min/Max
30°/44°F
Dew
21°F
Days of Rain
0/1
Wind
11mph
Tap a row for details.
YearConditionsLow / HighRainRunScore
2025
partly-cloudy-day
30°/ 44°-
Run Score: 8