The Non Cancelled Marathon
- Running
- Marathon
- Marathon
- Marathon
- Half Marathon
- 10k
- 5k
- 1 km
- Walking
- 5 km
April 10 - October 16, 2026
Oconomowoc, WI 53066 US
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!
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 to automatically get 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. 🌲 Important Notice: Your All Access Pass is non-transferable. Sharing your pass with another individual is not permitted. If someone else uses your pass, you will forfeit your access privileges. Thank you for respecting this policy—it helps us keep the program fair for all participants.
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!
Select your distance during registration (5K, 10K, or Half Marathon). Don’t worry—you can switch distances for free at any time! Please note: series registrations are non-deferrable.
Want to participate in individual events? Click on the specific race link below to register for that event.
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! 🌲👟
Walkers Welcome! Join the Wisconsin Trail Assail Series as a walker in any distance! Simply select the distance you’d like to participate in when registering. Important: Please review the course closure times to ensure you can complete your chosen distance before the course closes. Walk Division Details: The walk division is a timed event, but it’s non-competitive —no awards are given. All walkers will receive a finisher Woodle to celebrate their accomplishment! We’re excited to have you join us on the trails! 🚶♀️🌲
Kids can join the fun with the Kiddo's 1K —completely FREE when a parent is participating in the event! What’s Included: A race bib and a finisher medal for every registered kiddo. Registration Required: All kids must be registered to participate. Optional Add-On: T-shirts are available for purchase during registration if you’d like to make the day even more special. Let’s get those little legs moving! 🏃♂️✨
Forget the stale bagels and underripe bananas—our finish line aid station features free, fresh fruit to refuel and refresh you after your race. Because you deserve the best after crushing those miles! 🍉🍊
Scoring System: Points are awarded based on age group placement: 1st place = 10 points, 2nd place = 9 points, 3rd place = 8 points... Down to 10th place = 1 point. Everyone gets at least 1 point. Eligibility for Series Awards: To qualify for series awards, you must participate in 4 out of 7 races. You can switch between distances at no cost, but you must complete at least 4 races of the same distance to be eligible.
We’re on a mission to support local running companies, stores, and teams through the WTA Running Team Challenge —a fun and competitive way to spread awareness of the run local/buy local movement. How to Join: It’s super easy and completely free! All we ask is that you help us promote the WTA Run Series and the importance of supporting local. Not on a Team Yet? Consider joining #TeamSCSE! It’s free and open to all abilities. Plus, you’ll instantly gain hundreds of new running partners to cheer you on and share the journey. Run local. Support local. Be part of something bigger! 👟❤️
The Silver Circle Foundation, Inc. is a 501(c)3 non-profit organization dedicated to assisting: Firefighters and Police Officers: Providing personal safety equipment, Wounded Veterans: Raising funds to help secure mortgage-free homes, Troops Overseas: Sending care packages. Consider making a donation to support these brave men and women who sacrifice so much for our communities. Your contribution helps ensure their well-being and allows us to enjoy events like the Wisconsin Trail Assail Series. Remember: Every donation makes a difference! Donate Now
Let us support your workplace wellness initiatives and make it easy to get your team involved. How It Works: Reach Out: Share your workplace information with us. Custom Code: We'll create a unique discount code for your wellness members to use during registration. The code can waive or reduce the registration fee based on the discount your program offers. Post-Race Invoice: The day after the race, we’ll send you an invoice for the discounted registrations, which can be conveniently paid online. It’s that simple! Let’s work together to promote health and wellness in your workplace.
The Wisconsin Trail Assail Series is a Cupless Series! As runners, we strive to protect the environment, and the thought of tossing 100,000+ cups into landfills each year doesn’t sit right with us. That’s why we’ve gone cupless! But don’t worry—aid stations are here to stay! You’ll still find water and sports drinks available at every event; you just need to bring your own reusable cup or hydration gear. Plan Ahead: Bring a reusable cup, bottle, or whatever you use during training. Take advantage of our expanded bag drop areas, where you can leave your nutrition or hydration supplies for easy access. Let’s work together to enjoy the trails while keeping them beautiful for future generations! 🌿👟
Waukesha County and the Department of Natural Resources charge a park entrance fee. We encourage runners to support the park systems by purchasing an annual pass. There are daily park passes. Please see the individual race website for details. All Waukesha County passes MUST be purchased online. Waukesha County Annual Park Passes, Wisconsin Department of Natural Resources Annual Park Pass. All of the parks have limited parking capacity. Please follow the park employees directions for overflow parking. If you a fashionable late individual, you will be late for the start of the races. BE EARLY!
This event is proudly produced, timed, owned, and managed by Silver Circle Sports Events, LLC. 🎉
| WTA 5K Series | $180.00 | View |
| WTA 5K Walk Series | $180.00 | View |
| WTA 10K Series | $180.00 | View |
| WTA Half Series | $180.00 | View |
| Rucking 5K Ruck Series | $180.00 | View |
| Rucking 10K Ruck Series | $180.00 | View |
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