California · 50k · Marathon · 30k
O'Neill Park Trail Races
O'Neill Park Trail Races is a 50k, marathon, 30k, half marathon and 10k event held in Trabuco Canyon, California. Its next confirmed date is Saturday, May 15, 2027.
- Race day
- May 15, 2027
- Location
- Trabuco Canyon, CA
Race details
- Date
- Saturday, May 15, 2027
- Location
- Trabuco Canyon, California
- Distances
- 50k, Marathon, 30k, Half Marathon, 10k
- Course
- 344 ft gain
- Registration
- khraces.com
Registration, course & weather
- Registration status
- Registration status as last checked October 18, 2026: opens soon
- Start time
- 7:30 AM PDT
- Course profile — 10K
- Loop course; Trail surface; 344 ft gain (estimated from third-party elevation data)
- Course profile — Half Marathon
- Loop course; Trail surface; 1614 ft gain (estimated from third-party elevation data)
- Course profile — 30K
- Loop course; Trail surface; 1906 ft gain (estimated from third-party elevation data)
- Course profile — Marathon
- Loop course; Trail surface; 2332 ft gain (estimated from third-party elevation data)
- Course profile — 50K
- Loop course; Trail surface; 3211 ft gain (estimated from third-party elevation data)
About the O'Neill Park Trail Races
O'Neill Park Trail Races in Trabuco Canyon, CA.
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Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
O'Neill Park Trail Races: common questions
- When is the O'Neill Park Trail Races?
- The next confirmed date is Saturday, May 15, 2027.
- Where is the O'Neill Park Trail Races held?
- In Trabuco Canyon, California.
- What distances does the O'Neill Park Trail Races offer?
- 50k, Marathon, 30k, Half Marathon and 10k.
- How do I register for the O'Neill Park Trail Races?
- Registration is handled by the organiser at khraces.com. Entry fees, caps and deadlines are set there.
- Is registration open for the O'Neill Park Trail Races?
- Registration status as last checked October 18, 2026: opens soon.
- What time does the O'Neill Park Trail Races start?
- 7:30 AM PDT.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.