O'Neill Park Trail Races

MAY

15

2027

Trail races at O'Neill Park in Trabuco Canyon offer distances from 10k to 50k on park trails. Registration opens Dec 1, 2026 and the event does not offer refunds, though rollovers are allowed for weather or fire cancellations.

Sat 15 May 2027

Rancho Santa Margarita, California

Website

50 kilometers Marathon 30 kilometers Half Marathon 10 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

O'Neill Park Trail Races - May 15, 2027

The O'Neill Park Trail Races are held at O'Neill Park in Trabuco Canyon, California. The event takes place on park trails and offers multiple race distances across single-day trail courses.

Available distances include:

50k
Marathon
30k
Half Marathon
10k

The venue address is 30892 Trabuco Canyon Road, Trabuco Canyon, CA. Registration opens on Tuesday, Dec 1, 2026 at 6:00 AM PT.

The organizer states that the race does not offer refunds under any circumstances. If the event is canceled because of weather or fire, entrants may request a full rollover to the race makeup date or transfer entry to another KHraces event. Visit the organization's website for the most recent information.

50 km

50k

Marathon

30 km

30k

Half Marathon

10 km

10k