O'Neill Park Trail Races
Rancho Santa Margarita, United States • 16 May 2026
Event overview
The O'Neill Park Trail Races take place on Saturday, May 16, 2026, at O'Neill Regional Park, 30892 Trabuco Canyon Road, Trabuco Canyon, CA. Registration opens October 1, 2025 and is open until May 1, 2026. A parking pass is required at the park and costs $5. The event policy states there are no refunds; if the event is cancelled for weather or fire, entries may be rolled over to the race make-up date or to another KH Races event.
Race details
Distances offered:
- 50k
- Marathon
- 30k
- Half Marathon
- 10k
Optional bib pickup is available at Fleet Feet Laguna Niguel on May 16 from 3:30 pm to 6:30 pm, or at the race start on race morning. An athlete guide is available for participants. Past race results and photos exist for 2023 and 2024. Coaching programs are mentioned from local coaches and Fleet Feet Laguna Niguel. Sponsors listed for the event include brands that support the race. Visit the organization's website for the most recent information.