National 24 Hour Challenge
Push your limits at this ultra-endurance test in Middleville, where you can chase RAAM qualification or simply discover how far you can ride in a day. Choose your challenge across multiple time and distance categories, from a century ride to the full 24-hour marathon.
- Format: Multi-loop circuit with four different loop options
- Categories: 100 miles, 6 hours, 12 hours, 24 hours
- Options: Solo and team divisions available
- Loops: 49-mile and 22.5-mile for daytime, 10.8-mile and 4.0-mile for nighttime
- Venue: Thornapple Kellogg School with camping allowed
- Qualifier: RAAM qualifier for 24-hour non-drafting category