Western Pacific Marathon
Fremont, United States • 28 Mar 2026
Event Overview
The Western Pacific running event takes place in Fremont, California. It features half marathon, 10K, and 5K distances. The event is open to runners and walkers.
Course Details
The course uses part of the Western Pacific Trail, a path that was used in the 1800s to transport gravel for the construction of the western Transcontinental Railroad. The course is described as mostly flat. All races start and finish at Quarry Lakes. The 10K and half marathon routes follow the Alameda Creek Trail. The trails are primarily dirt fire trails, with some gravel sections and a short paved section. Visit the organization's website for the most recent information.