The Black River Trail Classic returns to Millston, Wisconsin on October 17th, 2026, marking its tenth anniversary with a well-established lineup of ultra-distance races through the scenic trails of Black River State Forest.
On race morning, participants will gather at dawn in the heart of the state forest. The cool autumn air typically ranges from around 7 to 16 degrees Celsius, complemented by an average wind speed that helps maintain comfortable conditions despite occasional light precipitation forecast for early October mornings. With an elevation gain and loss averaging out over varying terrain, runners can expect a challenging but rewarding course.
The Black River Trail Classic has become a cornerstone event in the local running community since its inception ten years ago. Each year sees hundreds of participants ranging from seasoned ultrarunners to those new to longer distances. The race supports various causes within the region, including scholarships for young athletes and conservation efforts at Black River State Forest.
The course winds through diverse landscapes within Black River State Forest, offering runners a mix of firm trails with some softer surfaces that challenge endurance while showcasing stunning fall foliage along ridges and valleys. Start lines are clearly marked near key trailheads in the forest, ensuring participants can navigate independently without confusion throughout their chosen distance.
Weather conditions on October 17th typically hover around an average temperature of 12 degrees Celsius, feeling like it with a light breeze at approximately 13 kilometers per hour. Humidity levels remain moderate and are unlikely to cause discomfort for most runners. There is also a low risk of rainfall that morning, making trail conditions firm but manageable.
The Black River Trail Classic offers an extensive range of distances suitable for all skill levels: the grueling 85K race for those seeking a substantial challenge; the equally scenic yet more moderate 50K and 25K options for runners looking to test their endurance over shorter durations; and the accessible 10K distance designed specifically for newcomers or casual participants.
85K
85K • Start: 05:00:00 • Fee: $120.00
50K
50K • Start: 07:30:00 • Fee: $70.00
25k
25K • Start: 09:30:00 • Fee: $55.00
10k
10K • Start: 10:30:00 • Fee: $35.00
Registration can be completed online at [https://ultrasignup.com/register.aspx?did=137966](https://ultrasignup.com/register.aspx?did=137966), where early birds registering before September 1st will receive a personalized bib number. Fees vary by distance, with the longest course costing $120 and the shortest at $35. Bib pickup details are available closer to race day in Millston.
Participants should plan for bib pick-up one week prior to October 17th, also held within Black River State Forest’s visitor center where all necessary information will be distributed. Race-day start location is clearly marked near major trailheads inside the forest. Age requirements stipulate that participants must be at least 16 years old.
The tenth running of the Black River Trail Classic in Millston, Wisconsin on October 17th offers runners a unique chance to experience some of the state’s most beautiful and challenging trails while contributing to local causes through their participation.
