Pasadena Trail Half Marathon

Pasadena, United States • 18 Oct 2026

Pasadena Trail Half & 5K/10K

The Pasadena Trail Half & 5K/10K is a trail running event held on Sunday, October 18, 2026. The event takes place at Hahamongna Watershed Park in Pasadena, California, at 4550 Oak Grove Drive, Pasadena, CA 91103, United States. The courses use the park's trail network and surrounding natural terrain.

Distances and course

  • Half marathon (trail)
  • 10K (trail)
  • 5K (trail)

Each distance follows marked trails within Hahamongna Watershed Park. The organizer identifies the half marathon as the main trail route for the event. Additional event details and course information are provided by the organizer. Visit the organization's website for the most recent information.

Race information

Half Marathon
Pasadena Trail Half
10 km
Pasadena Trail 10k
5 km
Pasadena Trail 5k
Visit the organization's website for the most recent information.
Trail runs nearby

A community trail run at Ernest Debs Park organized by True Heart Fitness. The loop follows several named trails, passes Debs Lake, and includes steep sections; participants are responsible for their own safety.

Timed trail event at Carbon Canyon Regional Park in Brea, California. Runners choose 3 hour, 6 hour or 12 hour divisions on a 2 mile loop through the redwood grove with aid stations and finisher items.

Test your speed and navigation skills in this unsanctioned 4+ mile race through Chino Hills. Navigate four checkpoints across gravel and trail terrain to compete for cash prizes in a format where you choose your own route.

Support youth programs while running or walking through beautiful Griffith Park. This community trail event features a 5K course for all ages and offers medals and t-shirts to the first 500 participants.

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