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

NOV
21
2026
A continuous 50 miles trail race at Lake Carl Blackwell in Stillwater, OK run on roughly 3.1 mile loops with 16 laps to reach 50 miles. The event features chip timing, an aid station each loop, a 12 hour cutoff, and pacers allowed after 4 PM.
Sat 21 Nov 2026
50 miles 40 miles

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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.

50 mi
50 Mile Challenge
40 mi
40 Mile Challenge
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