The Next Loop Endurance Series - Lake Carl Blackwell - Stillwater
Stillwater, United States • 23 May 2026
The Next Loop Endurance Series - Lake Carl Blackwell - Stillwater
The event is a loop based trail race held at Lake Carl Blackwell in Stillwater, OK. The 50 mile format uses a 3.1 mile (5K) loop; runners complete 16 loops to reach 50 miles. Minor distance variation is expected due to terrain.
Key event format features include a continuous 50 mile run with a 12 hour hard cutoff, a mass start shared by other 50 mile competitors, and a field limit of 75 runners. Chip timing records splits for every completed 5K loop and overall finishing time determines placement.
Athlete support and logistics are organized for loop running. A single start/finish aid station is available on every lap and athletes may stage personal gear at their vehicle or in a designated staging area. A dedicated 50 mile staging area is provided separate from hourly loop athletes. Medical and safety oversight are present according to ultra distance event standards.
Pacers are permitted beginning at 4:00 PM and must check in at the designated pacer station, wear official pacer identification, and enter and exit the course at the start/finish area only. Pacers may not carry additional gear or nutrition beyond standard trail running allowances. The event is produced by EverFurther Events, an organizer of loop based endurance races. Visit the organization's website for the most recent information.