Stand-alone obstacle races. The obstacle course is the main event. On the current calendar that's CTX Wrestling Presents: Mats to Mud Obstacle 5K + Youth 1 Mile (Hutto), Run for Freedom Obstacles 5K (Victoria), ASCO Spartacus Dash (Belton) and 2027 Badass Human Race Presented by GECU (El Paso).
Obstacle races inside a bigger race day. Hippo Trail Fest (Hutto) runs an obstacle 5K alongside regular trail distances, so a group can split between the obstacles and a straight trail race.
Kids' obstacle courses. A few regular races add a short obstacle course for children. See kids' obstacle courses below.
National obstacle series. Big-brand series sell entries on their own websites rather than RunSignup and run at ranches outside the cities, usually with several course lengths on one weekend. Upcoming in Texas: Spartan in Granbury (Oct 17–18, 2026), Spartan in Devine (Nov 21–22, 2026), Tough Mudder in Burnet (Feb 27, 2027) and Spartan in Burnet (May 15–16, 2027). See the series table.