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Lake Chabot Trail Challenge - Half Marathon and 5K

📅 June 6, 2027 (estimated date)📍 Castro Valley · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (June 7, 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

3.1 mi13.1 mi

About

The Lake Chabot Trail Challenge takes place in Castro Valley, California, in early June, and is an annual event popular with trail runners. The trail half marathon (13.1 miles) starts at 8:00 a.m. and the 5K at 8:30 a.m. The half marathon offers panoramic views of Lake Chabot and the surrounding area, while the 5K runs mainly on paved paths.

Water stations come with first aid and radio support. Runners can register online or on race day, with fees varying by category. Every finisher receives a medal, and age group medals go to the top athletes. The event uses chip timing, and race photos are available afterward. East Bay hills can be steep, so use a trail-oriented shoe on the half.

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