Proctor Valley Monster Endurance Run

Chula Vista, United States • 17 May 2025

The Proctor Valley Monster Endurance Run is a challenging 60-kilometer race set in the rugged terrain of Southern California. Participants will face a grueling course featuring 11,000 feet of elevation gain and 10,000 feet of descent, designed to test their endurance and mental fortitude. The event is characterized by its single-track trails and harsh conditions, making it a true test of grit for runners. Alongside the main endurance run, there is also a shorter event called the Lil Monster. This race promises a brutal yet beautiful experience for those seeking a formidable challenge. Visit the organization's website for the most recent information.

Race information

60 km
11000 m+
Visit the organization's website for the most recent information.
Trail runs nearby

Event overview The Carmel Valley Trail Race takes place on October 11, 2025, at Gonzales Canyon Open Space in Carmel Valley, San Diego. The 12th annual event starts and finishes at Solana Ranch Park on the east end of Gonzales Canyon, with..

Lake Hodges Trail Festival is an annual trail-running weekend at the Piedras Pintadas Trailhead near Lake Hodges in San Diego County, and is part of the Elevation Culture Race Series. The festival offers multiple distances: 50K, 25K, 15K, 1..

The Roosters Backyard Ultra will take place in San Diego on Saturday 1 November 2025.

Event details The Horsethief Canyon Trail Half Marathon is scheduled for 2025-11-01 in Alpine, California. The listed location is Forest Rte 16S04, Horsethief Canyon Trailhead, within the Pine Creek Wilderness. Permission for the course is..

Event overview The Sri Chinmoy 6-Hour Race in San Diego is a timed endurance event held at Miramar Reservoir. The race format is a 6-hour time limit during which athletes complete repeated laps of a 5-mile loop. Entry is limited to 70 parti..

The RD Trail Half Marathon will take place in Tijuana on Sunday 23 November 2025. You can run 21 kilometers.