The Next Loop Endurance Series - Lake Carl Blackwell
Lake McMurtry, United States • 23 May 2026
The Next Loop Endurance Series - Lake Carl Blackwell
The event is staged at Lake Carl Blackwell in Stillwater, OK, with the course formed by a clearly marked 3.1 mile loop. Runners return each lap to the same central start and finish area where a fully stocked aid station is located.
The trail is a mix of dirt paths, grass, and lightly packed earth, with gentle rolling elevation and several wide sections. The surface and layout offer generally good footing on lakeside terrain, open grasslands, and wooded sections, making repeated laps feasible for longer efforts.
The format is loop based: all athletes begin together, complete one 5K loop at a time, and may choose whether to continue after each lap. Each completed loop is counted and recorded; there are no cutoffs that force elimination. This progression model lets participants test pacing, nutrition, and endurance incrementally.
Location details are provided for the venue address in Stillwater, Oklahoma. Distances offered at the event include: Visit the organization's website for the most recent information.
- 5K
- 10K
- 15K
- Half Marathon (13.1M)
- 18K
- Marathon (26.2)
- 50K