#Onemileatatime 12 Hour Challenge

JUN

20

2026

This 12-hour challenge features a unique Last Man Standing format on a one-mile loop. Runners start a new lap every 15 minutes, with times decreasing in the final hours. The event caps at 50 miles and is held at Oxbow Meadows in Georgia.

Sat 20 Jun 2026

Columbus, Alabama , Georgia

Registration

1 Mile to 50 Miles

Always double-check with the organizer's website! This page may contain affiliate links.

Event Overview

The #Onemileatatime 12 Hour Challenge is a running event with a Last Man Standing format. It is the 6th annual edition of this event.

Location & Format

The event takes place at Oxbow Meadows in Columbus, Georgia. Participants run a one mile paved loop. Each lap must be completed within a 15-minute window, after which runners must wait for the next start signal from a corral. This format continues for the first 10 hours.

Race Progression & Rules

For the final two hours (the last 10 miles), the allowed time per mile decreases incrementally every other lap. The final lap is a timed sprint to determine the winner. The event is a 12-hour format, with a maximum possible distance of 50 miles.

Participant Information

The main aid station provides water and electrolytes. Participants are responsible for bringing their own food and supplies and may set up personal tents. Prize money is offered to the top male and female finishers, with the amount scaling based on total registration numbers. Visit the organization's website for the most recent information.

1 Mile to 50 Miles