Berkeley Trail Adventure

SEP
12
2026
Trail races on September 12, 2026 in Tilden and Wildcat Canyon near Berkeley, offering 10K, half, 35K and 50K with marked technical trails, aid stations every 5–7 miles, chip timing, and a cupless format.
Sat 12 Sep 2026
50 kilometers 35 kilometers 13 miles 6 miles

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Berkeley Trail Adventure : Tilden and Wildcat Canyon, Berkeley, CA

The Berkeley Trail Adventure is a trail running event on September 12, 2026, held in Tilden Regional Park and Wildcat Canyon in Berkeley, California. The event offers the following 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

Courses are mostly on technical dirt trails and non-technical fire roads; the 35K and 50K include about 1.5 miles of asphalt bike path near Inspiration Point. Runners can encounter shaded oak and eucalyptus sections and exposed stretches with views of the bay and the Golden Gate Bridge on clear days. Courses are marked with colored ribbon placed roughly every 200 meters; blue ribbons indicate wrong-way routes.

Aid stations appear roughly every 5 to 7 miles and typically supply energy gels, waffles, trail mix, boiled potatoes with salt, soda, sports hydration, fruit, and basic first aid. This is a cupless event; participants must carry their own bottle or reusable cup. Reusable cups and 500 ml soft flasks are sold at the event.

Timing is by disposable chip attached to the back of each bib. The event capacity is 350 runners. The 35K and 50K have an 8.5 hour time limit; all participants must be off course by 5:00 PM. Parking is available free at Lake Anza. Dogs are allowed on leash; runners who bring dogs must start at the back of the pack. Drop bag service is not available. Visit the organization's website for the most recent information.

50 km
50k
35 km
35k
13 mi
Half Marathon
6 mi
10k
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