Western Pacific Marathon

Fremont, United States • 28 Mar 2026

The Western Pacific Marathon event, held at Quarry Lakes Regional Recreation Area in Fremont, California, offers runners a choice of half marathon, 10K, and 5K distances. The course is mostly flat, following the historic Western Pacific Trail, which was originally used in the 1800s to transport gravel for the Transcontinental Railroad. This scenic and accessible route provides an excellent opportunity for participants to achieve personal bests. The event supports the East Bay Regional Parks Campership Program and encourages community involvement through team participation and volunteer opportunities. It combines history, nature, and competitive running in a welcoming atmosphere. Visit the organization's website for the most recent information.

Race information

13 mi
Half Marathon
10 km
10k
5 km
Visit the organization's website for the most recent information.
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