USARunningTrail10K · 10 km / 6.2 mi30K · 30 km / 18.6 mi50K · 50 km / 31.1 miHalf · 21.1 km / 13.1 mi

O'Neill Park Trail Races

Trabuco Canyon, California · USA

When is the next O'Neill Park Trail Races?

Sat, 15 May 2027

5 distances · see start times below

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Time limits and cut-offs

Some events have a finishing deadline or intermediate checkpoint cut-offs. These can vary by distance, start wave and edition.

Half · 2027-05-15: Not yet verified for this edition. Check the official race instructions.
Marathon · 2027-05-15: Not yet verified for this edition. Check the official race instructions.
10K · 2027-05-15: Not yet verified for this edition. Check the official race instructions.
30K · 2027-05-15: Not yet verified for this edition. Check the official race instructions.
50K · 2027-05-15: Not yet verified for this edition. Check the official race instructions.

About O'Neill Park Trail Races

O'Neill Park Trail Races is a running event in Trabuco Canyon, California, United States. Recorded disciplines include 10K, 30K, 50K, half marathon. The listed surface is trail. The listed organiser is Keira Henninger Events. The next listed date is Saturday, 15 May 2027. Check the organiser's information for entry and race-day arrangements.

Dates, starts & entry

Times are local to the race. Select the entry route for your distance.

Half · 21.1 km / 13.1 mi
Sat, 15 May 2027
Starts 07:30 GMT-7
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O'Neill Park Trail Races · Half · 21.1 km / 13.1 mi
2027-05-15 · 07:30 (America/Los_Angeles)
Venue / race area: Trabuco Canyon, California, United States
Race website
Start reminder only; finish time is not confirmed. Adjust the calendar duration if needed.
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O'Neill Park Trail Races · Half · 21.1 km / 13.1 mi
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Date, 07:30 start and distance list (50k, Marathon , 30k, Half Marathon , 10k) confirmed on the organiser's UltraSignup registration page for the 2027 edition (checked 2026-11-09). Start time shown is the page's event start; individual distances may start at different times. Local time America/Los_Angeles.
Edition source
Marathon · 42.2 km / 26.2 mi
Sat, 15 May 2027
Starts 07:30 GMT-7
Confirm date and entry availability with the organiser
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O'Neill Park Trail Races · Marathon · 42.2 km / 26.2 mi
2027-05-15 · 07:30 (America/Los_Angeles)
Venue / race area: Trabuco Canyon, California, United States
Race website
Start reminder only; finish time is not confirmed. Adjust the calendar duration if needed.
Google Calendar Outlook.com Microsoft 365 Apple Calendar
Google and Outlook open a prepared event for you to save. Apple uses your private AthRecs race subscription. Download a one-off file only if you prefer to import it yourself.
Share
Share this race
O'Neill Park Trail Races · Marathon · 42.2 km / 26.2 mi
WhatsApp Facebook X Telegram Email
Choose where to share, then select who to send it to.
Date, 07:30 start and distance list (50k, Marathon , 30k, Half Marathon , 10k) confirmed on the organiser's UltraSignup registration page for the 2027 edition (checked 2026-11-09). Start time shown is the page's event start; individual distances may start at different times. Local time America/Los_Angeles.
Edition source
10K · 10 km / 6.2 mi
Sat, 15 May 2027
Starts 07:30 GMT-7
Confirm date and entry availability with the organiser
Entry details
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O'Neill Park Trail Races · 10K · 10 km / 6.2 mi
2027-05-15 · 07:30 (America/Los_Angeles)
Venue / race area: Trabuco Canyon, California, United States
Race website
Start reminder only; finish time is not confirmed. Adjust the calendar duration if needed.
Google Calendar Outlook.com Microsoft 365 Apple Calendar
Google and Outlook open a prepared event for you to save. Apple uses your private AthRecs race subscription. Download a one-off file only if you prefer to import it yourself.
Share
Share this race
O'Neill Park Trail Races · 10K · 10 km / 6.2 mi
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Choose where to share, then select who to send it to.
Date, 07:30 start and distance list (50k, Marathon , 30k, Half Marathon , 10k) confirmed on the organiser's UltraSignup registration page for the 2027 edition (checked 2026-11-09). Start time shown is the page's event start; individual distances may start at different times. Local time America/Los_Angeles.
Edition source
30K · 30 km / 18.6 mi
Sat, 15 May 2027
Starts 07:30 GMT-7
Confirm date and entry availability with the organiser
Entry details
Add to calendar
O'Neill Park Trail Races · 30K · 30 km / 18.6 mi
2027-05-15 · 07:30 (America/Los_Angeles)
Venue / race area: Trabuco Canyon, California, United States
Race website
Start reminder only; finish time is not confirmed. Adjust the calendar duration if needed.
Google Calendar Outlook.com Microsoft 365 Apple Calendar
Google and Outlook open a prepared event for you to save. Apple uses your private AthRecs race subscription. Download a one-off file only if you prefer to import it yourself.
Share
Share this race
O'Neill Park Trail Races · 30K · 30 km / 18.6 mi
WhatsApp Facebook X Telegram Email
Choose where to share, then select who to send it to.
Date, 07:30 start and distance list (50k, Marathon , 30k, Half Marathon , 10k) confirmed on the organiser's UltraSignup registration page for the 2027 edition (checked 2026-11-09). Start time shown is the page's event start; individual distances may start at different times. Local time America/Los_Angeles.
Edition source
50K · 50 km / 31.1 mi
Sat, 15 May 2027
Starts 07:30 GMT-7
Confirm date and entry availability with the organiser
Entry details
Add to calendar
O'Neill Park Trail Races · 50K · 50 km / 31.1 mi
2027-05-15 · 07:30 (America/Los_Angeles)
Venue / race area: Trabuco Canyon, California, United States
Race website
Start reminder only; finish time is not confirmed. Adjust the calendar duration if needed.
Google Calendar Outlook.com Microsoft 365 Apple Calendar
Google and Outlook open a prepared event for you to save. Apple uses your private AthRecs race subscription. Download a one-off file only if you prefer to import it yourself.
Share
Share this race
O'Neill Park Trail Races · 50K · 50 km / 31.1 mi
WhatsApp Facebook X Telegram Email
Choose where to share, then select who to send it to.
Date, 07:30 start and distance list (50k, Marathon , 30k, Half Marathon , 10k) confirmed on the organiser's UltraSignup registration page for the 2027 edition (checked 2026-11-09). Start time shown is the page's event start; individual distances may start at different times. Local time America/Los_Angeles.
Edition source

Location & race day

Listed venue / area

Trabuco Canyon, CaliforniaUSA

Find this location on a map

Confirm the exact start line, parking and arrival instructions with the organiser. A listed town or postcode may cover a wider area.

About the race

O'Neill Park Trail Races is listed on UltraSignup for 2027 near Trabuco Canyon, California, with the following distances or formats: 50k, Marathon , 30k, Half Marathon , 10k. Organised by Keira Henninger Events.

Surface:: Trail
Organiser:: Keira Henninger Events

Race website

Entry options for

Ways to enter

Compare the listed booking routes. Verified links show when they were checked.

Sat, 15 May 2027

Official race entry

Official entry

Check availability

Recorded Mon, 9 Nov 2026

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Third-party prices, booking fees, allocations and refund terms can differ. Confirm the final details with the provider before paying.

Race questions

When is the next event?

The next listed date for O'Neill Park Trail Races is 15 May 2027.

Where is it held?

O'Neill Park Trail Races is listed in Trabuco Canyon, California, United States. Check the event's race-day instructions for the exact start location.

Which distances are listed?

The programme listed for 15 May 2027 includes Half marathon, Marathon, 10K, 30K, 50K.

What time does it start?

Listed starts for 15 May 2027: Half marathon: 07:30 GMT-7; Marathon: 07:30 GMT-7; 10K: 07:30 GMT-7; 30K: 07:30 GMT-7; 50K: 07:30 GMT-7. Times are local to the race venue. Follow the start or wave assigned to your entry.