WISSOTA Challenge Series

2025 Structural Buildings Challenge Series Point Fund Increased The schedule for the 27th season of the Structural Buildings WISSOTA Late Model Challenge Series powered by Momentum Truck Group, Freightliner, Western Star has been released and should provide some amazing...more

The Structural Buildings WISSOTA Late Model Challenge Series will remain the Structural Buildings WISSOTA Late Model Challenge Series through at least the 2027 season, as Structural Buildings has signed a new three-year contract with WISSOTA to continue as the headliner of...more

The 2024 edition of the Structural Buildings WISSOTA Late Model Challenge Series powered by Momentum Truck Group, Freightliner, Western Star wrapped up this past Wednesday at the Speedway Motors WISSOTA 100 with Shane Sabraski winning the finale and securing the GTX Rookie...more