The Next Loop Endurance Series | Lake Carl Blackwell 2026

The Next Loop Endurance Series challenges runners with a 3.1-mile trail loop. Start a new loop every hour on the hour. After each loop, decide whether to continue or stop. Only completed loops are counted. This format tests discipline, recovery, decision-making, and endurance. It is for first-time 10K participants to seasoned ultra runners and functional athletes. Run the loop. Recover. Decide. Repeat. Find your next limit, one loop at a time.