Berkeley Trail Adventure

SEP
12
2026
Trail races in Tilden and Wildcat Canyon near Berkeley with 10K, half marathon, 35K and 50K options, aid stations every 5 to 7 miles, a cupless format, and a 350 runner capacity.
Sat 12 Sep 2026
50 kilometers 35 kilometers Half Marathon 10 kilometers

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Berkeley Trail Adventure

The Berkeley Trail Adventure is a trail running event in Tilden Regional Park and Wildcat Canyon in Berkeley, CA. It offers multiple distances over mostly dirt trails and fire roads with notable elevation gain on each course.

Distances:

  • 10K : 6.0 miles, 1,050 ft elevation gain
  • Half Marathon : 13.0 miles, 2,800 ft elevation gain
  • 35K : 21.6 miles, 4,600 ft elevation gain
  • 50K : 31.0 miles, 6,800 ft elevation gain

Aid stations are placed approximately every 5 to 7 miles and provide a variety of foods and beverages such as energy gels, stroop waffles, trail mix, boiled potatoes with salt, soda, water, and electrolyte drink mixes. The event is cupless; participants must carry their own water bottle or reusable cup. Disposable timing chips are attached to the back of each bib and timing is handled with professional chip timing systems.

Course surfaces are primarily technical dirt trails with non-technical fire roads; the 35K and 50K routes include about 1.5 miles of asphalt bike path. Courses are marked with colored ribbon about every 200 meters and with laminated signs or flour at complex sections; blue ribbons mark wrong way trails.

Parking is available free at Lake Anza in Tilden Park and the event has a total capacity of 350 runners. There is an 8.5 hour time limit for the 50K and 35K distances. Volunteers receive a race T-shirt, food, and credit toward future events. Finishers receive medals and age-group awards; the top overall finishers receive trophies. Visit the organization's website for the most recent information.

50 km
50k
35 km
35k
Half Marathon
1/2 Marathon
10 km
10k
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