Western Pacific Half Marathon/ 10K / 5K
⚠️ 2027 edition: provisional information
The date is estimated from the 2026 edition (March 28, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.
Available distances
About
The Western Pacific Half Marathon / 10K / 5K takes place in Fremont, California, in late March. The half marathon (13.1 miles) starts at 8:00 a.m., the 10K (6.2 miles) at 8:30 a.m. and the 5K (3.1 miles) at 8:45 a.m. A Half Hikers group covers the half marathon distance on foot, starting early at 7:00 a.m.
The mix of formats allows runners and walkers to share the course at their own pace. East Bay weather in late March is generally mild but changeable, with cool mornings and wind possible in the afternoon. Wear layers you can drop off at the start, and use the first miles of a half marathon to settle into a steady rhythm. Check the official page for course and parking details.
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Races nearby
Other upcoming races around Fremont.
Quarry Turkey Half Marathon/10K/5K
Nov 28, 2026 · Union City, CA · 0 mi away
13.1 mi · 6.2 mi · 3.1 mi
ZombieRunner Quarry Lakes
Nov 14, 2026 · Fremont, CA · 2 mi away
3.1 mi · 6.2 mi · 13.1 mi
Diwali Fun Run + Festival
Nov 14, 2026 · Fremont, CA · 2 mi away
6.2 mi · 3.1 mi
Coyote Hills Half Marathon/10k/5K
Jan 30, 2027 · Fremont, CA · 4 mi away
13.2 mi · 6.2 mi · 3.1 mi
Lake Chabot Trail Run
Nov 7, 2026 · Castro Valley, CA · 9 mi away
3.1 mi
Brazen New Year's Eve
Jan 1, 2027 · Castro Valley, CA · 9 mi away
13.2 mi · 6.2 mi · 3.1 mi