O'Neill Park Trail Races
Rancho Santa Margarita, United States • 16 May 2026
O'Neill Park Trail Races : May 16, 2026
O'Neill Park Trail Races take place at O'Neill Regional Park in Trabuco Canyon, California (30892 Trabuco Canyon Rd). The event is scheduled for Saturday, May 16, 2026. On-site parking requires a $5 fee.
Distances and course
- 50k
- Marathon
- 30k
- Half Marathon
- 10k
The races run on trails in O'Neill Park, including sections through Trabuco and Live Oak Canyons. Course terrain and vegetation noted for the event include coast live oak, sycamore, cactus, wild buckwheat, sagebrush, scrub oak, buckthorn and mountain mahogany.
Logistics and other details
Optional bib pickup is offered at Fleet Feet Laguna Niguel on the Friday before the race or at the race start on race morning; the parking pass is available with bib pickup for $5. An athlete guide is available for participants. Registration closes on May 1, 2026. The event does not offer refunds; if the race is canceled due to weather or fire, registrants are allowed a full rollover to the race makeup date or to another KHraces event. Past race results and photo galleries are available for recent years. Volunteer opportunities are listed by the organizer. Visit the organization's website for the most recent information.