The Next Loop 50-Mile Challenge - Lake Carl Blackwell - Stillwater
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The Next Loop 50 Mile Challenge, Lake Carl Blackwell, Stillwater
The Next Loop 50 Mile Challenge takes place in Stillwater, Oklahoma at 11000 W Hwy 51 on Saturday, November 21, 2026. The event offers multiple long distance options and is presented as part of The Next Loop Endurance Series.
Distances include:
- 50 Mile Challenge
- 40 Mile Challenge
The 50 mile race is run as a continuous loop format with a main aid station available every lap. A 12 hour time limit is enforced for the 50 mile distance. Chip timing records loop splits and overall finishing time. Athletes may stage personal gear at their vehicle or in a designated staging area. Pacers are permitted beginning at 4:00 PM and must check in at the designated pacer station and follow pacer procedures. Field size is limited and standard ultra safety and medical oversight are provided.
Age group divisions recognize Open, Masters ages 50 to 69, and Grand Masters ages 70 and older. The event is produced by EverFurther Events. Registration closes Friday, November 20 at 11:59 PM CT. Visit the organization's website for the most recent information.
