24HR The Grind

JAN
29
2027
A 24 hour loop race in Perris, CA featuring repeated Molcajete loops, solo and four person team entries, with awards for top individuals and teams.
Fri 29 Jan 2027

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

24HR "The Grind"

24HR "The Grind" is scheduled for January 29, 2027 in Perris, CA, and is organized by Machete Trail Madness. The event offers both an individual 24 hour competition and a team 24 hour option.

The course is based on the Molcajete 1.0 loop of approximately 4 miles that participants repeat as many times as they can within 24 hours. Organizers note a potential alternative course under consideration that would include similar climbing with a longer loop of about 7 miles.

Teams are composed of four runners in any mix of genders. Each team member is assigned a number from 1 to 4 and teams cycle through that order lap after lap without skipping or repeating numbers. One team captain completes registration for all team members.

Awards are given to the top three individual men and women and to the top three teams. The group campground and the start/transition area are at Group Picnic C; drivers should enter from the Morene Valley entrance rather than Ramona Express Way.

Registration details include an early deadline of December 24, 2026 to guarantee medal, buckle, and participant shirt, and a general registration close listed as January 2 at 11:59 PM PT. Visit the organization's website for the most recent information.

Team 24h
Individual 24h

Events nearby

An obstacle course race weekend at Lake Elsinore Raceway with Sprint, Super, kids races, Hurricane Heat events, and spectator access on Sep 26-27, 2026.
At Wildwood Canyon State Park in Yucaipa, the event offers an 8 hour timed loop and a 6K on a 3.7 mile loop with about 600 ft vertical gain.
A multi-distance ultramarathon at Lake Perris featuring 10, 20, 50, 100 and a demanding 200 mile race with looped courses, aid stations, camping and cash prizes for top finishers.
Trail event in Yucaipa with 21, 10, and 4 mile courses; 10% of registration fees support the Crafton Hills Open Space Conservancy.
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.