Big Texas Ultra
Georgetown, United States • 14-15 Nov 2025
Event overview
The 2025 Big Texas Ultra takes place at Flat Creek Crossing Ranch in Johnson City, Texas. The race has temporarily moved from Lake Georgetown for 2025 and is scheduled to return to Lake Georgetown in 2026. All races begin and end at Flat Creek Crossing Ranch and use trails that run through Flat Creek Crossing Ranch and Pedernales Falls State Park. Course surfaces include rocky, dirt, and grass singletrack. Each loop covers 50K and has about 2,200 ft of elevation gain; the 100K totals about 4,400 ft of gain.
Distances
- 100K
- 50K
- 15K
- 15K RUCK
Entries and race rules
Registration closes on Fri, Nov 14 at 11:59 PM CT. There is a participant capacity limit due to parking; once the event is sold out there is no waitlist and no race day registration. The 100K Championship field is limited to qualifiers; to qualify for the 100K Championship a runner 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. Runners may also enter the regular 100K without qualifying. Pacers are allowed on the last loop of the 100K, with no more than one pacer per participant. Visit the organization's website for the most recent information.