The TNT Tuesday Night Thunder Race Series offers weeknight criterium bike racing in Louisville, Colorado, with races each Tuesday beginning in June. The series focuses on short, fast laps instead of a long point-to-point route, and Sanitas Sports designs the series to connect racers with the local community.
The TNT course covers 0.6 miles per lap, featuring three wide 90-degree turns and a long, gradual uphill into the start/finish line. Each lap gains approximately 27 feet, making the layout accessible for beginners while still requiring riders to maintain speed, corner precisely, and manage the incline at the end. Races are self-categorized and unsanctioned, simplifying the setup and keeping costs low; women and juniors participate without charge. HUNT Wheels and Louisville Cyclery present the series, with Tendeg LLC managing registration and parking.