Grasslands Trail Run

Alvord, United States • 21-22 Mar 2026

Grasslands Trail Run

The Grasslands Trail Run takes place in the Lyndon B. Johnson National Grasslands near Alvord, Texas. Trails loop among rolling hills and run through pine and oak grove forests, open fields, and areas with livestock. The event uses marked equestrian trails that begin and end at TADRA Point Trailhead. The course map shows loops and aid station locations.

Distances offered:

  • 100 Mile
  • 50 Mile
  • Marathon
  • Half Marathon
  • 15K

Course routing by distance: the half marathon uses the blue trail; the marathon uses the white and blue trails; the 50 mile and 100 mile use the blue, white, yellow and red trails; the 15K on Sunday uses the yellow trail. Trails are described as non technical. Elevation gain for the 100 mile is listed as about 4,000 feet. The 100 mile field has a 30 hour cutoff. The 15K has a 3.5 hour cutoff, which aligns with the Sunday finish time for the 100 mile. Cutoffs for the 50 mile, marathon and half marathon are described as generous.

Runners receive race shirts, with 100 mile entrants eligible for a long sleeve shirt if registered before the shirt order is placed roughly 2.5 weeks before the event. Finishers in the 100 Mile earn a sub 20, sub 24 or Finisher buckle. Finishers in the 50 Mile, Marathon, Half Marathon and 15K receive distance specific medals.

The event offers volunteer opportunities that earn race credits transferable under the event policy. The refund policy grants 100 percent race credit for cancellations more than 30 days before the race, 50 percent race credit for cancellations between 30 and 14 days before the race, and no refunds or transfers within two weeks of the event. Credits must be used within one year unless prior arrangements are made for medical or military reasons. Visit the organization's website for the most recent information.

Race information

100 mi
100 Mile
50 mi
50 Mile
26 mi
Marathon
13 mi
1/2 Marathon
15 km
15k
Visit the organization's website for the most recent information.
Trail runs nearby