The Format

The Format
Every hour, on the hour, a bell rings. You run 4.1667 miles. You come back. You do it again.

There is no finish line. No set distance. The race ends when only one runner remains — the Last Person Standing. That runner is the only official finisher. Everyone else gets a DNF (UltraSignup will reflect your place and distance).

The Course

The Course
4.1667 miles per loop | ~200' vert per loop | 60 minutes to complete each loop

Race Start
7:00 AM, Dripping Springs, TX

Time and Distance Examples
6 hours – 25.0 mi
12 hours – 50.0 mi
18 hours – 75.0 mi
24 hours – 100.0 mi
36 hours – 150.0 mi
48 hours – 200.0 mi

Prize Money

Prize Purse
$5,000 to the Last Man Standing. $5,000 to the Last Woman Standing.

The Rules

Loops begin every hour, on the hour. You must be at the start/finish when the bell rings.
You have 60 minutes to complete the loop. Any remaining time is yours to rest and recover.
Miss a loop start or fail to finish in time and you are disqualified.
No pacers permitted at any point.
Crew is allowed at the start/finish only. No course access.
Aid is available at the start/finish only. Carry what you need on the loop.
One official finisher.

Event's current local time: 2:05 AM CT