The Next Loop 50-Mile Challenge - Lake Carl Blackwell - Stillwater

Stillwater, United States • 21 Nov 2026

The Next Loop 50-Mile Challenge - Lake Carl Blackwell - Stillwater, OK

The event is a continuous trail 50 miles race held at Lake Carl Blackwell in Stillwater, OK. It is part of a loop based format with multiple distance options.

  • 50 Mile Challenge
  • 40 Mile Challenge

The course uses a loop of approximately 3.1 miles (5K); competitors complete 16 laps to reach 50 miles, with minor variation in measured distance accepted due to terrain. The race is run as a continuous format rather than an hourly format and enforces a 12 hour cutoff. A main aid station is available every loop, and athletes may stage personal gear at their vehicle or in a designated staging area.

Timing is by chip with splits recorded for each completed loop and overall finishing time used for placement. Field size is limited to 75 runners. Pacers are permitted beginning at 4:00 PM and must check in at the designated pacer station and follow pacer procedures. The event is produced by EverFurther Events. Registration closes Fri, Nov 20 at 11:59 PM CT. Visit the organization's website for the most recent information.

Race information

50 mi
50 Mile Challenge
40 mi
40 Mile Challenge
Visit the organization's website for the most recent information.
Trail runs nearby

A trail race at Lake Liberty in Guthrie, OK on November 7, 2026 offering looped 7.8-mile laps and a 5K out-and-back across distances to 50K, plus a ruck division. Finishers receive custom buckles or medals and one aid station sits about 4 m..

A loop-based endurance event on a 3.1 mile trail at Lake Carl Blackwell where runners choose how many hourly laps to complete. Results track loops completed and combined time; entry fee is $100.

A loop based trail event at Lake Carl Blackwell on November 21, 2026 with 25K and 50K options and optional challenge stations that can reduce finish time. Tasks include strength, sandbag work, skill drills and mental focus exercises.

A continuous loop ultra at Lake Carl Blackwell on a 3.1 mile (5K) loop with a 12 hour cutoff. Runners choose 40 or 50 miles and use a centralized aid station, designated crew areas, and permitted pacers.

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