Lake Chabot Trail Run

Castro Valley, United States • 7 Nov 2026

Trail Running at Lake Chabot Regional Park

The Lake Chabot Trail Run takes place in Castro Valley, California, with the course starting at the Lake Chabot Regional Park Marina. The routes travel around the reservoir and throughout the surrounding hills. Participants run on trails measured for accuracy using a surveyor's measuring wheel.

The event offers several distances to accommodate different preferences:

  • 50K trail race
  • Marathon (26.2 miles) trail race
  • 30K trail race
  • Half Marathon (13.1 miles) trail race
  • 8K (4.8 miles) trail race
  • 5K (3.1 miles) road race
  • 2 miles road race
  • 50 yard dash for children aged 6 and younger

The 50 yard dash for children is a free event. Registration for the various distances opens in late 2025 and closes approximately one week before the event date, though registration for the shorter 2 mile race and the children's dash remains open until the day of the event. The course is designed to be accessible for those participating in a trail race for the first time. Visit the organization's website for the most recent information.

Race information

50 km
50k
26 mi
Marathon
30 km
30k
13 mi
Half Marathon
5 mi
3 mi
Coastal Testing
Kid's Run (6yo & Younger, 50yd Dash) - Free!
Visit the organization's website for the most recent information.
Trail runs nearby

A trail race in the Marin Headlands with 8K, half, 30K and 50K options along coastal single-track and fire roads, marked courses, cupless aid stations, and a 350 runner capacity.

Monthly community hikes with an optional trail-run pace in Richmond organized by FIERCE Advocates, Moving Forward, and Richmond Run Club at 5551 Giant Highway.

An annual August trail event from Lake Chabot Marina offering a 50 km and a half marathon with volunteer aid stations and a plant-based finish festival.

Bear Creek on August 8, 2026 offers 5K, 10K and a 13.32-mile half marathon in the Briones Regional Park area, with a virtual Remote Runner option. Entry windows and fees are listed for each race.

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