Lake Chabot Trail Run
Castro Valley, United States • 7 Nov 2026
Lake Chabot Trail Run
The Lake Chabot Trail Run takes place in Castro Valley, California on November 7, 2026, with multiple trail-distance events that start and finish at the Lake Chabot Regional Park Marina. The course travels around the Lake Chabot reservoir and surrounding hills and is marked with ribbon and color coded flagging for each loop. Distances are measured using a Rolatape surveyor's measuring wheel.
- 8K
- Half Marathon
- 30K
- Marathon
- 50K
- Kid's Run (6 years & younger, 50 yd) Free
Elevation gain and surface breakdown are published for each distance: 8K (380'), Half Marathon (1,450'), 30K (1,830'), Marathon (2,900'), 50K (3,280'). Course surfaces include single-track, dirt road, and asphalt in varying proportions by distance.
Aid stations are fully stocked roughly every 4 to 5 miles with fruit, salty snacks, candy, water, and Skratch electrolyte drink; runners are advised to carry at least 20 oz of water between stations. The event is cupless; participants are asked to bring their own fluid container. Drop bags are allowed for the 30K, Marathon, and 50K at the Start/Finish. Bibs indicate the chosen distance and shirts are provided to pre-registered runners; all finishers receive a custom medal and 50K finishers also receive a custom coaster.
The course uses polka-dot flagging to indicate turns and blue ribbons to mark wrong ways. Headphones are permitted on dirt road sections only. Parking at the park has a $5 fee; pets are not allowed on course. Visit the organization's website for the most recent information.