Immerse yourself in the rugged beauty of Willow River State Park at the Trout Brook 10-miler, an exhilarating trail race designed for those who thrive on challenging terrain. Nestled just outside Hudson, Wisconsin, this course offers a mix of single-track trails that wind through dense forests and over rolling hills. As you navigate steep climbs and descents, the scenery transforms around every turn with views of lush greenery and the park's stunning waterfall. The race begins at 8:00 am sharp, following an hour-long registration period starting at 7:00 am where participants can collect their bibs and swag bags. The course itself is a grueling yet rewarding journey that tests your endurance on both technical trails and rustic paths less frequented by visitors. Midway through the race, you'll find a well-stocked aid station equipped with water, Heed electrolyte drink mix, and an assortment of individually wrapped snacks to refuel as you push towards the finish line. Though there's only one restroom available along the route, it’s strategically placed near this critical juncture. Participants should be prepared for unpredictable weather conditions; race organizers reserve the right to alter or cancel portions of the event if safety becomes a concern. This ensures that all runners can enjoy the challenging yet breathtaking experience in Willow River State Park without compromising their well-being. Brace yourself for an unforgettable adventure through one of Wisconsin's most captivating natural settings, where every step reveals new wonders and challenges await around each bend.
Races Offered
10 Miler
Oct 10, 2026
straighten
Distance —
16.1K
terrain
Type —
Running
timer
08:00
sell
$40.00
Weather History
These values represent the 3-year monthly averages for October in Hudson.
thermostatTemperature
7.5° / 16.3°
wb_sunnyFeels like
3.9° / 12.7°
light_mode
Avg sunshine hours
8h 6m
water_drop
Avg rainfall
2.4 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
13.8 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.0)
humidity_mid
Humidity
67.8%
wb_twilight
Sunrise
07:28
nightlight
Sunset
18:24
About Hudson
Learn more about the host city, Hudson.
Hudson is a city in the St. Croix Valley of northwestern Wisconsin. It sits along the St. Croix River, which is also the Minnesota border, and is adjacent to and sometimes considered a part of that state's Twin Cities region.