Trailbreaker official race logo - running event in Waukesha, Wisconsin
DATE:
TIME:
LOCATION:
Waukesha, Wisconsin
PRICE:
Free
DISTANCES:
9 Events: 20 Miles, 26.2 Miles, 13.1 Miles, 13.1 Miles, 3.1 Miles, 6.2 Miles, 6.2 Miles, 1.85 Miles, 3.1 Miles

About Trailbreaker

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!

New for 2026 - Rucking!

Rucking is a physical activity that involves walking or hiking with a weighted backpack (called a rucksack). The term comes from the military, where soldiers train and operate carrying heavy loads over long distances. In civilian fitness and recreation, rucking is gaining popularity as a versatile and low-impact workout. 

More information about rucking.

The RAD

🏃‍♀️ Training for a spring marathon?

We’ve got your long run covered at the Trailbreaker!

Introducing The RAD (Run Any Distance) — perfect for runners needing a big mileage day without the race-day pressure. You’ll get all the perks of every other distance — timing, course support, swag, snacks — just no age-group awards (for the obvious “we have no idea what distance you actually ran” reasons 😆).

Get your long run done, enjoy the crowd energy, and maybe even earn some hot chocolate miles. ☕💪

TrailbreakerThe 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! New for 2026 - Rucking! Rucking is a physical activity that involves walking or hiking with a weighted backpack (called a rucksack). The term comes from the military, where soldiers train and operate carrying heavy loads over long distances. In civilian fitness and recreation, rucking is gaining popularity as a versatile and low-impact workout.  More information about rucking. The RAD 🏃‍♀️ Training for a spring marathon? We’ve got your long run covered at the Trailbreaker! Introducing The RAD (Run Any Distance) — perfect for runners needing a big mileage day without the race-day pressure. You’ll get all the perks of every other distance — timing, course support, swag, snacks — just no age-group awards (for the obvious “we have no idea what distance you actually ran” reasons 😆). Get your long run done, enjoy the crowd energy, and maybe even earn some hot chocolate miles. ☕💪
Waukesha, WI

Race Events & Distances

Choose from 10 race distances available for Trailbreaker in Waukesha, WI. Registration includes timing, finisher medals, and post-race refreshments.

Kiddos 1K

Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Waukesha, WI
WaukeshaWI
Trailbreaker Organizers

Frequently Asked Questions about Kiddos 1K

How long is the Kiddos 1K?
The Kiddos 1K covers Distance varies.
What time does the Kiddos 1K start?
The Kiddos 1K starts at 7:45:00 AM.
How much does it cost to register for the Kiddos 1K?
Registration for the Kiddos 1K costs $0.00.
Where is the Kiddos 1K located?
The Kiddos 1K takes place in Waukesha, WI.

The RAD

20 Miles
Distance
20 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Waukesha, WI
WaukeshaWI
Trailbreaker Organizers

Frequently Asked Questions about The RAD

How long is the The RAD?
The The RAD covers 20 Miles.
What time does the The RAD start?
The The RAD starts at 8:00:00 AM.
How much does it cost to register for the The RAD?
Registration for the The RAD costs $0.00.
Where is the The RAD located?
The The RAD takes place in Waukesha, WI.

Marathon

26.2 Miles
Distance
26.2 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Waukesha, WI
WaukeshaWI
Trailbreaker Organizers

Frequently Asked Questions about Marathon

How long is the Marathon?
The Marathon covers 26.2 Miles.
What time does the Marathon start?
The Marathon starts at 8:00:00 AM.
How much does it cost to register for the Marathon?
Registration for the Marathon costs $0.00.
Where is the Marathon located?
The Marathon takes place in Waukesha, WI.

Half Marathon

13.1 Miles
Distance
13.1 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Waukesha, WI
WaukeshaWI
Trailbreaker Organizers

Frequently Asked Questions about Half Marathon

How long is the Half Marathon?
The Half Marathon covers 13.1 Miles.
What time does the Half Marathon start?
The Half Marathon starts at 8:00:00 AM.
How much does it cost to register for the Half Marathon?
Registration for the Half Marathon costs $0.00.
Where is the Half Marathon located?
The Half Marathon takes place in Waukesha, WI.

Half Marathon Ruck

13.1 Miles
Distance
13.1 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Waukesha, WI
WaukeshaWI
Trailbreaker Organizers

Frequently Asked Questions about Half Marathon Ruck

How long is the Half Marathon Ruck?
The Half Marathon Ruck covers 13.1 Miles.
What time does the Half Marathon Ruck start?
The Half Marathon Ruck starts at 8:00:00 AM.
How much does it cost to register for the Half Marathon Ruck?
Registration for the Half Marathon Ruck costs $0.00.
Where is the Half Marathon Ruck located?
The Half Marathon Ruck takes place in Waukesha, WI.

5K

3.1 Miles
Distance
3.1 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Waukesha, WI
WaukeshaWI
Trailbreaker Organizers

Frequently Asked Questions about 5K

How long is the 5K?
The 5K covers 3.1 Miles.
What time does the 5K start?
The 5K starts at 8:15:00 AM.
How much does it cost to register for the 5K?
Registration for the 5K costs $0.00.
Where is the 5K located?
The 5K takes place in Waukesha, WI.

10K Ruck

6.2 Miles
Distance
6.2 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Waukesha, WI
WaukeshaWI
Trailbreaker Organizers

Frequently Asked Questions about 10K Ruck

How long is the 10K Ruck?
The 10K Ruck covers 6.2 Miles.
What time does the 10K Ruck start?
The 10K Ruck starts at 8:15:00 AM.
How much does it cost to register for the 10K Ruck?
Registration for the 10K Ruck costs $0.00.
Where is the 10K Ruck located?
The 10K Ruck takes place in Waukesha, WI.

10K

6.2 Miles
Distance
6.2 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Waukesha, WI
WaukeshaWI
Trailbreaker Organizers

Frequently Asked Questions about 10K

How long is the 10K?
The 10K covers 6.2 Miles.
What time does the 10K start?
The 10K starts at 8:15:00 AM.
How much does it cost to register for the 10K?
Registration for the 10K costs $0.00.
Where is the 10K located?
The 10K takes place in Waukesha, WI.

Walk

1.85 Miles
Distance
1.85 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Waukesha, WI
WaukeshaWI
Trailbreaker Organizers

Frequently Asked Questions about Walk

How long is the Walk?
The Walk covers 1.85 Miles.
What time does the Walk start?
The Walk starts at 8:15:00 AM.
How much does it cost to register for the Walk?
Registration for the Walk costs $0.00.
Where is the Walk located?
The Walk takes place in Waukesha, WI.

5K Ruck

3.1 Miles
Distance
3.1 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Waukesha, WI
WaukeshaWI
Trailbreaker Organizers

Frequently Asked Questions about 5K Ruck

How long is the 5K Ruck?
The 5K Ruck covers 3.1 Miles.
What time does the 5K Ruck start?
The 5K Ruck starts at 8:15:00 AM.
How much does it cost to register for the 5K Ruck?
Registration for the 5K Ruck costs $0.00.
Where is the 5K Ruck located?
The 5K Ruck takes place in Waukesha, WI.

Registration Information

Registration is typically available online until race day (subject to capacity). Early registration is recommended for guaranteed entry and potential early bird pricing. Check with race organizers for specific event details and included amenities.

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