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Pasadena Trail Half Marathon

Name: Pasadena Trail Half Marathon
Start: 2026-10-18
End: 2026-10-18
Location: Pasadena

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.

United States California Pasadena

Race information

Website

Half Marathon

Pasadena Trail Half Marathon

10 km

Pasadena Trail 10k

5 km

Pasadena Trail 5k

Visit the organization's website for the most recent information.

Trail runs nearby

Sunday Jan 4

ABWR Half Marathon - Whittier Narrows

Start 2026 strong at Ring in the New Year in South El Monte on January 4 with 5k, 10k, 15k and half marathon routes on scenic Whittier Narrows trails. Enjoy custom medals, free photos and post race snacks.

Sunday Jan 25

Hollywood Sign Run

Run or hike to the iconic Hollywood Sign in Griffith Park on Jan 25, 2026. Choose distances from a kid run to an 8 mile course over scenic trails and roads, and enjoy a premium shirt, finisher medal, chip timing, awards and free photos.

Sunday Jan 25

Mt. Hollywood 12K Trail Run Hike

Run or hike through Griffith Park to the iconic Hollywood Sign on out and back courses ranging from a kids run to 8 miles. Enjoy skyline views, chip timing, aid stations and a finisher medal.

Saturday Jan 31

Sean O'Brien 100K

...

Run the Sean O'Brien trail race in Calabasas on Jan 31, 2026 for scenic trails and rewarding climbs across multiple distances. Choose from 30K to 100K with the 100K as a Western States 100 qualifier; register by Dec 15.