Trail Hog Half Marathon 2026

Trail Hog is a trail race held in Joseph D. Grant Park, a large park east of San Jose near Mount Hamilton. Options include a half marathon, 10K, 5K, and hiking/walking. This annual Brazen Racing event is part of the Brazen Ultra Half Series, which features challenging half marathons around the San Jose and San Francisco area. These routes often exceed 13.1 miles, with significant climbs and descents on rough trails. The half marathon course begins and ends near the Mount Hamilton Road parking area. It follows an out-and-back path through park trails including Dutch Flat, Dairy, Brush, Eagle, Felipe, Barn, Hotel, Bass Lake, Canada de Pala, and San Felipe. Runners will encounter hikers, mountain bikers, and equestrians on the shared trail system, so expect loose rock, dirt, sticks, and uneven terrain. The course ascends from approximately 1,440 feet to over 1,970 feet, with the summit reached early in the race. The name is inspired by park wildlife, such as wild pigs and tarantulas. Brazen Racing enhances the local race atmosphere with complimentary photos taken by volunteer photographers.