Partly cloudy throughout the day.
Light Rain
25%
Details
Light Rain
25%
Wind
12mph
Wind
12mph
Wind
12mph
Gusting to
24mph
Wind
13mph
Wind
13mph
Wind
13mph
Pre-Race
Race
Post-Race
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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 2027 The Trailbreaker?
The 2027 The Trailbreaker will be held on Sunday April 4, 2027.
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: 44°, Average Low: 33°, Average High: 54°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 35° | 38° | 42° | 45° | 47° | 49° | 52° | 52° |
| Feel | 29° | 34° | 39° | 39° | 46° | 47° | 49° | 49° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 8mph | 8mph | 9mph | 11mph | 9mph | 9mph | 11mph | 12mph |
| Dew | 23° | 23° | 25° | 24° | 23° | 23° | 22° | 23° |
| RunScore |
The Trailbreaker 2026
Mar 29, 2026
Partly cloudy throughout the day.
Low: 39°, High: 62°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | ||||||||
| Feel | 33° | 36° | 40° | 43° | 52° | 56° | 59° | 60° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 13mph | 13mph | 15mph | 17mph | 16mph | 10mph | 14mph | 12mph |
| Dew | 27° | 27° | 28° | 27° | 27° | 27° | 25° | 24° |
| 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 |