Backyard Ultra - Last Person Standing

Event Details

Date: Saturday, November 22, 2025

Start Time: 8:00 AM

Location: 2200 Manzano Mile, Marble Falls, TX

This year's Backyard Ultra is officially sanctioned and challenges participants to run a 4.1667 mile loop every hour until only one runner remains. With the flexibility to set your own pace, you must return to the starting area before the next lap begins!

Race Rules

• Be back at the start line within 60 minutes (minimum 14:23 min/mile pace).
• Participants will receive warnings at 3 minutes, 2 minutes, and 1 minute before the next loop.
• Crew access is allowed at the start/finish area.
• Primitive camping on site is permitted, including RVs.
• Race support includes water, Tailwind, and various snacks.

Race Swag

All participants will receive race swag following the event. Register by October 22, 2025, to ensure your slot.

Registration Cost: $150 (Price increase on September 1, 2025)

Travel Info

Marble Falls is located:

• 45 minutes west of Austin
• 1 hour and 15 minutes north of San Antonio
• 3 hours south of Dallas

Don’t miss out on this unique opportunity to be a part of the ultimate endurance challenge!