Calvins Challenge
This multi-format cycling playground lets you test your limits across everything from crisp 7-mile time trials to grueling 24-hour endurance battles. The loop system at Shawnee High School accommodates every rider, whether you're chasing RAAM qualification, gunning for the WUCA 12-hour North American Championship, or just want to see how far you can push in six hours.
- Distances: 7, 15, 50-mile time trials; 100-mile, 6, 12, and 24-hour options
- Course: Multi-lap system with 15-mile daytime loop and 6.8-mile finishing option
- Categories: Drafting and non-drafting, solo and team
- Equipment: Road bikes, trikes, handcycles, ElliptiGOs welcome
- Location: Shawnee High School, Springfield, OH