Pasadena Trail Half Marathon
Pasadena, United States • 19 Oct 2025
Event details
The Pasadena Trail Half & 5K/10K takes place on Sunday, October 19, 2025, at Hahamongna Watershed Park in Pasadena, California. It is the final race in a four-event 2025 Trail Race Series. Early packet pick up is scheduled for Saturday, October 18 at Run With Us Pasadena, 235 N Lake Ave, Pasadena. Race day parking is free and available on site. The event is held rain or shine; routes may be altered in the case of flooding. No refunds are offered, but bib transfers are allowed up to 10 days before the event.
Courses and race support
Distances offered:
- 5K - 3.12 mi, +306 ft elevation, mixed use / truck trail, difficulty rating 2.5/10.
- 10K - 6.2 mi, +400 ft elevation, mixed use / fire roads, includes the Gabrieleno Trail, difficulty rating 4.5/10.
- Half Marathon - 13.12 mi, +1855 ft elevation, single track / rocky terrain, includes El Prieto Canyon and Brown Mtn Rd, difficulty rating 7.9/10.
Each distance is professionally chip timed and the course is marked with ground arrows and additional signage. Aid stations are provided on course with water and electrolyte; longer distances include CLIF products. Participants running over 5 miles are required to carry personal hydration. Finishers receive race swag including a shirt, tote bag, and a commemorative wooden medal. Free event photos will be available after the race. Visit the organization's website for the most recent information.