Muir Woods Mountain Challenge

JUL
18
2026
Trail races of 10K, half marathon and 30K near Stinson Beach, CA that feature steep climbs, coastal ridge running, and technical single-track through Muir Woods and Mt Tam. Aid stations offer gels, snacks and hydration; 30K has a 6.5 hour limit.
Sat 18 Jul 2026
30 kilometers 13 miles 10 kilometers

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Muir Woods Mt Challenge

Muir Woods Mt Challenge, formerly "Table Rock," is a trail running event held at Stinson Beach, CA. The courses include steep climbs and technical single-track, with a notable climb of 2,000 feet in just over two miles on the Willow Camp hill. Runners follow ridge-line coastal trails with views of Stinson Beach and the Pacific Ocean, descend the damp twisting Matt Davis Trail, and for longer distances ascend Mt Tam via Steep Ravine before running through Muir Woods. The final climb reaches the Cardiac Hill summit followed by a descent to Stinson Beach along the Dipsea Trail.

Distances:

  • 10K
  • Half Marathon
  • 30K

Aid stations provide a variety of food and beverages such as Gu Energy gels and chews, Stroopwafels, trail mix, pretzels, potato chips, Oreos, boiled potatoes with salt, soda, water, Skratch Labs Hydration Mix, PB&J sandwiches, fruit, M&M’s, and salt tablets. Skratch is mixed to about 80 to 100 calories per 20 fluid ounces. Runners are encouraged to carry at least one 20 ounce bottle. The 30K has a 6.5 hour time limit. Event capacity is 300 runners across all distances.

Early bib pickup is Friday, July 17, 2:00 PM to 6:00 PM at San Francisco Running Company, 247 Shoreline Highway, Mill Valley, CA. Race day check-in and bib pickup are scheduled for the morning of the event. Registration closes Friday, July 17 at 11:59 PM PT.

Awards include custom trophies for the top three overall male and female finishers per distance, age-group medals three deep across standard age categories, a custom medal for all finishers, and a custom Dead Last Finisher award. Visit the organization's website for the most recent information.

30 km
30k
13 mi
Half Marathon
10 km
10k
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