Riley Park Trail Races

AUG
1
2026
Experience trail running in Orange County with several race distances ranging from a 5k to a 6 hour timed challenge. Navigate a scenic 3.3 mile looped course with multiple early bib pickup options available.
Sat 1 Aug 2026
30 kilometers Half Marathon 10 miles 10 kilometers 5 kilometers

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Riley Park Trail Races

The Riley Park Trail Races take place in Orange County and offer multiple distance options held on a looped course. The event utilizes a 3.3 mile loop for all participants, with varying numbers of laps required depending on the chosen distance. The course is located within a natural park setting, providing a trail running experience during the summer season.

Registration is available for several specific distances and a timed event:

  • 5k: 1 loop
  • 10k: 2 loops
  • 10 Miler: 3 loops
  • Half Marathon: 4 loops
  • 30k: 6 loops
  • 6 Hour: Completion of as many loops as possible within the timeframe

Participants in the 30k category have a time limit of 6.5 hours to finish their event. For all participants, check-in on race morning begins at 6:15 am.

Bib pickup is organized across multiple days and locations prior to the race. Early pickup is available at Road Runner Sports in Costa Mesa and Fleet Feet in Laguna Niguel on the Thursday and Friday preceding the event. There is also an option for runners to pick up their bibs on race morning at the event site. Specific athlete guides are provided for different distance groups to communicate course details and parking information. Visit the organization's website for the most recent information.

30 km
30k
Half Marathon
Half Marathon
10 mi
10 Miler
10 km
10k
5 km
6 Hour
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