Wisconsin Trail Series

🌲 Welcome to the Wisconsin Trail Assail Series! 🏃‍♂️🏃‍♀️

Experience seven races over seven months, leading up to an epic series-ending championship! Set in the breathtaking Waukesha County and Wisconsin State Parks, our courses offer scenic trails suited for all fitness levels.

Choose from 5K, 10K, and Half Marathon distances—whether you're running, walking, or chasing a new PR, there's a place for you. Plus, our series is walker-friendly, so everyone can enjoy the adventure!

Ready to hit the trails? Join us and take on the challenge!

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🚀 New for 2025 - WTA All Access Pass & Rucking!

🏃‍♂️ Skip the Lines With The WTA All Access Pass! 🚀

Your ticket to skipping the packet pickup line and heading straight to the start line!

How It Works:

• Register: for the series in any distance 🏅
• Opt Out: of a shirt and save $10 👕💰 - this automatically gets you the pass
• Receive: a reusable ankle strap for timing ⏱️
• No Check-in: required – just show up and run! 🏃‍♂️🚀

More running, less waiting—because race day should be about the trails, not the lines. 🌲

Rucking at All Events!

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. We now offer it at all Wisconsin Trail Assail Events!

More information about rucking.

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Series Registration:

• Select: your distance during registration (5K, 10K, or Half Marathon).
• Switch: distances for free at any time!
• Note: series registrations are non-deferrable.

Single Race Registration:
Want to participate in individual events? Click on the specific race link below to register for that event.

Kiddo's 1K Registration:
Our Kiddo's Races are always free! If your little one wants to join the fun, please register them for the individual Kiddo's race of your choice.

Get ready to explore the trails, challenge yourself, and have a blast with the Wisconsin Trail Assail Series! 🌲👟

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📝 Important T-Shirt Info for Late Registrations

If you register after 12:00 PM on March 28, 2025, T-shirts may not be available for the first race of the series.

Please select the appropriate shirt option during registration:

• All Access Pass - No Shirt: Choose this if you're joining the All Access Pass and want to skip the packet pickup line.
• Registered After Deadline: Select this if you'd still like to receive shirts starting after the first race.

Thank you for understanding and helping us plan a great race experience for everyone!