2 ultra events in Denton County, Texas

From big races to Saturday morning group runs—find ultra events and connect with the local endurance sports community.

• Isle du Bois Trail Run [blazetrails.com] [Register at ultrasignup.com] - Facebook
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  Sat, Dec 05, 2026

  50k Run Trail Ultra

  Ray Roberts Lake State Park Isle Du Bois, Denton County, Texas, United States
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• Naughty Hog [texasoutlawrunning.com] [Register at ultrasignup.com]
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  Sat, Dec 12, 2026

  5k 10k 25k 50k 100k Ultra

  ray roberts lake state park johnson branch unit, Denton County, Texas, United States
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