Muir Woods Mt. Challenge
⚠️ 2027 edition: provisional information
The date is estimated from the 2026 edition (July 18, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.
Available distances
About
The Muir Woods Mt. Challenge takes place in Stinson Beach, California, on July 17, 2027, with three trail distances: a 30K, a half marathon and a 10K.
The 30K (18.6 miles / 29.9 km) and the half marathon (13.1 miles / 21.1 km) start at 7:30 a.m., followed by the 10K (6.2 miles) at 8:00 a.m.
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Races nearby
Other upcoming races around Stinson Beach.
Mt. Tam Trail Run
Nov 7, 2026 · Stinson Beach, CA · 0 mi away
6.2 mi · 13.1 mi · 18.6 mi · 31.1 mi
Quad Dipsea
Nov 28, 2026 · Mill Valley, CA · 5 mi away
28.4 mi
Peacock Gap Trail Run
Dec 5, 2026 · San Rafael, CA · 8 mi away
18.6 mi · 13.1 mi · 6.2 mi
Golden Gate Trail Run - Winter
Feb 6, 2027 · Sausalito, CA · 9 mi away
5 mi · 13.1 mi · 18.6 mi · 26.2 mi
RunThrough San Francisco at Crissy Field 5K, 10K & Half Marathon
Nov 7, 2026 · San Francisco, CA · 11 mi away
13.1 mi · 6.2 mi · 3.1 mi
San Francisco Half Marathon®
Feb 7, 2027 · San Francisco, CA · 12 mi away
13.1 mi · 6.2 mi · 3.1 mi