Big Texas Ultra
Georgetown, United States • 14-15 Nov 2025
Event overview
The Big Texas Ultra takes place November 14-15, 2025 in Johnson City, Texas. The event has temporarily moved from Lake Georgetown to Flat Creek Crossing Ranch for 2025 because of park closures and construction; it is scheduled to return to Lake Georgetown in 2026. The race headquarters address is 339 Ulrich Rd, Johnson City, TX 78636.
Distances offered:
- 100K
- 50K
- 15K
- 15K RUCK
Registration closes on November 13, 2025 at 11:59 PM CT. There is no race day registration, no waitlist, and participant numbers are limited due to parking capacity at Russell Park.
Course and logistics
All races start and finish at Flat Creek Crossing Ranch. The course uses rocky, dirt, and grass singletrack trails and includes routes around Flat Creek Crossing Ranch and Pedernales Falls State Park. Each loop covers 50K with about 2,200 ft of elevation gain per loop. The 100K event comprises two loops for a total of about 4,400 ft of elevation gain.
Pacers are allowed on the last loop of the 100K, with a limit of one pacer per participant. To qualify for the 100K Championship, an athlete must place Top 7 Male or Female in one of these races: North Texas Ultra 100K, West Texas Ultra 50M, East Texas Ultra 50K, or South Texas Ultra 50K. A non-qualifying entry labeled "100K" is available to run the 100K and earn the buckle without competing for prize money. Visit the organization's website for the most recent information.