24HR The Grind
Always double-check with the organizer's website! This page may contain affiliate links.
24HR "The Grind", January 29, 2027
This is an individual 24 hour trail race with a team option, held in Perris, CA and organized by Machete Trail Madness. The event uses a repeated loop course and offers awards for top finishers.
The course is a 7 mile loop with 1,631 ft of elevation gain. The loop begins with about two miles of flat, fast terrain, then continues through roughly 2.5 miles of technical climbing and rugged terrain in the Badlands up to Russell Peak. The final section is about 2.5 miles of downhill and flatter trail that returns to base camp. Competitors complete as many laps as they can in a 24 hour format.
Teams are composed of four runners in any gender mix. Each team member is assigned a number from 1 to 4 and runners cycle through those numbers in the same order on each lap. One team representative completes the team registration.
Awards are given to the top three individual men, the top three individual women, and the top three teams.
Logistics notes on the registration page include a deadline to receive event swag and a date when discounted registration rates end. Group Picnic C is the group campground and the start and transition area; approach that area from the Moreno Valley entrance rather than via Ramona Express Way. Visit the organization's website for the most recent information.
