Mill Valley
Trail Running Calendar near Mill Valley 2026-2027
Explore the top trail runs near Mill Valley for 2026-2027! We've gathered 52 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
May 2027
A 62 mile trail ultramarathon in Stinson Beach with over 11,000 feet of gain, relay options, sustainability practices, and a 400 runner field limit.
Trail races from Stinson Beach into Muir Woods offering marathon, half marathon and 7 mile courses with technical trails, aid stations and a 300 runner limit.
A race day in El Sobrante with a half marathon, 10K, 5K and a hiker division through the hills of Wilcat Canyon; registration windows and fees vary by distance.
June 2027
A 100 mile point to point ultramarathon through the East Bay starting at California Memorial Stadium, featuring 18,000 feet of climbing and a 33 hour finish limit.
Historic trail race from Mill Valley to Stinson Beach covering 7.4 miles each June, with staggered handicap starts and a field limited to about 1,500 runners.
July 2027
July 24, 2027 at Lake Chabot Marina features 5K, 10K, half marathon, virtual 13.1 and a Half Marathon Hiker, with registration dates and published fees per event.
August 2027
An annual August trail event at Lake Chabot Marina featuring a 50K loop through East Bay parks and a looped half marathon with strong volunteer aid and a plant based finish.
A 13.7 mile out and back on the Dipsea Trail from Stinson Beach to Mill Valley with handicapped starts and annually adjusted wave assignments.