Join us for the 42nd annual Lake Chabot Trail Challenge Half Marathon and 5K on Sunday, June 7, 2026. The race begins at 8:00am for the Half Marathon and 8:30am for the 5K. Please arrive early so that you may find parking, pick up your bibs, use restrooms facilities, and be properly prepared to race before the start. Race takes place rain or shine and there are no refunds. This race is well regarded amongst serious trail runners in the outlying areas.

06-07-2026, 08:00 am - 02:00 pm