North Texas Ultra

Jacksboro, United States • 6 Feb 2027

North Texas Ultra

The North Texas Ultra is a multi-distance trail running event held on the Lost Creek Reservoir State Trailway at Fort Richardson State Park, North Park Unit (134 Trail Way Dr, Jacksboro, TX). The course is a 15.5 mile out and back loop on an open, wide trail surfaced with soft fine gravel. Elevation change is relatively modest with about 550 feet of gain and loss per 15.5 mile loop. Historic average temperatures for the event period are about 35 to 60 degrees.

Distances offered include:

  • 5K
  • 10K
  • 25K
  • 50K
  • 52 mile
  • 100K
  • 25K ruck

Aid stations are positioned along the course; main aid is at the start/finish (mile 15.5), Mandy’s aid at mile 4.4/11.1, and a Quarry water station at mile 7.8. Aid station supplies include hot and cold food, snacks, water, electrolytes, ice and pickle juice. Road and crew access and drop bag options vary by station; drop bag transport to the Twin Lake aid station is available. The event is a no cup race; a personal water carrying system is required for all distances.

Mandatory gear requirements apply to the longest events: a headlamp and an emergency blanket for the 100K and 52 mile races. Ruck events specify weight rules based on runner weight. Some events use shuttle parking arrangements and nearby camping and lodging options exist at the state park and in Bridgeport. Course time cutoffs are published for participating distances. The event is part of the Texas Ultra Series and includes finisher medals, specific 100K buckles, and placement awards that can qualify top finishers for series championship entry. Visit the organization's website for the most recent information.

Race information

100 km
100k
52 mi
52 Miler
50 km
50k
25 km
25k
25 km
25k Ruck
10 km
10k
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

A May trail running event at Possum Kingdom Lake with varied terrain, multiple looped distances from 4 miles to 69 miles, cupless aid stations, drop bags, and paced options for the longest distances.

Annual March trail races at the Lyndon B. Johnson National Grasslands near Decatur, Texas, offering distances from 15K up to 100 mile on rolling, mixed pine and oak terrain where runners share trails with horses and livestock.

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