Lake Chabot Trail Challenge - Half Marathon & 5K

This year is the 35th running of the Lake Chabot Trail Challenge. The course is a scenic, hilly loop, mainly on dirt fire roads.  The ridge-line views look down upon scenic Lake Chabot, surrounding grassy slopes, and eucalyptus groves.  Mt. Diablo and San Francisco Bay are visible along the route. There are water stations with first aid and radio support; we recommend bringing your own hydration as well.  The half marathon has a time limit of 3.5 hours. 

The 5k (3.1 miles) course has gentle rolling hills and consists mostly of paved surfaces.  This route includes one water station with first aid and radio support. 

Both races are chip-timed.  High quality t-shirts for the first 300 participants.  Finisher's medals to those who complete their race.  Age division medals given to the top 3 in each of the 13 age divisions in the half marathon.  Medals given to the top 3 in each of the age divisions in the 5K.

The entrance closest to the event's parking lot is: 17404 Lake Chabot Road, Castro Valley, CA 94546.  On Google Maps, this will appear as "Entry of Lake Chabot Parking Space."  The registration area and start lines are just a few minutes walk from the lot ( just follow the signs).