Logo

O'Neill Park Trail Races

Rancho Santa Margarita, United States • 16 May 2026

Event Overview

The O'Neill Park Trail Races are scheduled for Saturday, May 16, 2026. The event takes place at O'Neill Park, located on Trabuco Canyon Road in Trabuco Canyon, California. The races are organized by KHraces.

Race Distances

The event offers several race distances. These are:

  • 50k
  • Marathon
  • 30k
  • Half Marathon
  • 10k

Additional Information

Registration for the event closes on Friday, May 1. The organizer's policy states that the event does not offer refunds. In the event of a cancellation due to weather or fire, registration may be rolled over to a make-up date or another KHraces event. Visit the organization's website for the most recent information.

United States California Rancho Santa Margarita

Race information

Website
50 km
50k
Marathon
Marathon
30 km
30k
Half Marathon
Half-Marathon
10 km
10k
Visit the organization's website for the most recent information.
Trail runs nearby

Whiting Ranch Trail Races

Modjeska

Explore the trails of Whiting Ranch Wilderness Park in Orange County. Choose from four distances, from a 6k to a 30k, on courses with views through oak woodlands. The event is well-supported and offers participant gear.

Monserate Endurance Test

Fallbrook

Test your endurance at Monserate Mt. Preserve with 6 and 12 hour trail running options. Complete as many loops as possible solo or as a team while enjoying local trails and a fully stocked aid station.

Billy Goat Mountain Climb

Silverado

Tackle the trails in the Cleveland National Forest near Silverado with the Billy Goat Mountain Climb. Choose from three distances, all featuring significant elevation gain, including a local favorite 17-mile loop. Aid stations and shuttles..

Rock It in El Moro Canyon

Laguna Beach

This trail run or hike in Laguna Beach's El Moro Canyon offers a 6K or 10-mile course with ocean views. Participants receive a shirt, medal, and photos. Parking at the state park costs $15.