O'Neill Park Trail Races

Rancho Santa Margarita, United States • 17 May 2025

The O'Neill Park Trail Races, scheduled for May 17, 2025, offer a stunning running experience in the scenic O'Neill Regional Park, located in Trabuco Canyon, California. Participants can choose from various race distances, including a 50k, marathon, 30k, half marathon, and 10k. The event emphasizes the beauty of the trails in South Orange County, making it a popular choice among runners. Registration opens on December 3, 2024, and is expected to fill quickly, as previous events have sold out rapidly. Parking is available for a fee, and bib pickup options are provided for convenience. Visit the organization's website for the most recent information.

Race information

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

The Nine Trails 35 Mile Endurance Run is a challenging trail running event set to take place in Santa Barbara, California, on March 15, 2025. This demanding course features over 10,000 feet of elevation gain and descent, making it comparable to a tough 50-mile run. Participants will navigate steep, ..

The Rock It in El Moro Canyon 6K & 10 Miler, presented by Fitness on Fire, is an exciting trail running event set in the scenic El Moro Canyon, Laguna Beach, CA. Participants can choose between a 6K or a 10-mile course, featuring challenging climbs and breathtaking views of the Pacific Ocean. The ev..

The Billy Goat Half Marathon Climb is an exciting running event taking place in Temescal Valley, California, on April 5, 2025. Participants can choose between a challenging half marathon and a 10K race, both featuring significant elevation gains of approximately 2,800 feet. The course traditionally ..

The Machete Trail Madness 100K is a challenging ultramarathon event taking place on April 12, 2025, at Lake Perris, California. Participants can choose from three distances: 100K, 50K, and 10K, with a course featuring a 10-mile loop and a total elevation gain of 2,300 feet per lap. The event emphasi..

The Saddleback Marathon, scheduled for April 26, 2025, takes place in Black Star Canyon, Silverado, CA. This challenging event features a marathon, half marathon, and 10K, all set against a backdrop of significant elevation gain, with the marathon boasting approximately 4,500 feet. Participants can ..

The John Wayne Grit Series - Newport Coast is a running event that features 50K, 25K, and 5K races set against the stunning backdrop of Crystal Cove State Park in Laguna Beach, California. Participants navigate hill climbs and enjoy ocean views along dirt roads and single-track trails. The event sup..