Partly cloudy throughout the day.
Details
Wind
14mph
Gusting to
26mph
Wind
12mph
Gusting to
25mph
Pre-Race
Race
Post-Race
350 lumens of light to illuminate the trail ahead. Black Diamond Spot 350 Headlamp.
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Race Overview
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.
WikipediaFAQ
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.
The Trailbreaker Weather History
The Trailbreaker Weather Averages
Average Temp: 38°, Average Low: 27°, Average High: 46°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 30° | 35° | 38° | 40° | 42° | 43° | 44° | 44° |
| Feel | 26° | 32° | 38° | 36° | 40° | 38° | 39° | 39° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 4mph | 3mph | 2mph | 6mph | 3mph | 7mph | 8mph | 11mph |
| Dew | 18° | 19° | 22° | 20° | 20° | 19° | 20° | 21° |
| RunScore |
The Trailbreaker 2025
Apr 6, 2025
Clear conditions throughout the day.
Low: 27°, High: 46°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | ||||||||
| Feel | 26° | 32° | 38° | 36° | 40° | 38° | 39° | 39° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 4mph | 3mph | 2mph | 6mph | 3mph | 7mph | 8mph | 11mph |
| Dew | 18° | 19° | 22° | 20° | 20° | 19° | 20° | 21° |
| RunScore |