Outer Richmond
Trail Running Calendar near Outer Richmond 2026-2027
Explore the top trail runs near Outer Richmond for 2026-2027! We've gathered 62 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
February 2027
Trail races from 5K to 50K through eucalyptus forests and lakeside trails at Lake Chabot Regional Park near Castro Valley, CA.
March 2027
Three day trail race in Marin County offering 28K, 50K and a point to point 100K with marked courses, aid stations, shuttle service and extensive race support.
Multiple trail distances run through Redwood Regional Park on March 20, 2027 at Chabot Space & Science Center. Routes use East Ridge, West Ridge, Stream and Bridle trails and distances were measured with a Rolatape surveyor's wheel.
April 2027
Trail running event in Walnut Creek on April 3, 2027 offering 50K, Half Marathon, 10K and 5K with a portion of entry fees benefiting Save Mount Diablo.
Trail marathon, half marathon and 10K in the Marin Headlands featuring ridge and coastal views of the Golden Gate Bridge and Pacific Ocean; field limited to 400 participants.
A hilly loop race around Angel Island offering a Half Marathon and 10K, limited to 400 participants with ferry access from Tiburon and a 3.5 hour course cutoff.
A trail event at Lake Chabot Regional Park offering distances from a 50‑yard kids dash to a 50K ultramarathon. The looped course circles the Lake Chabot reservoir and surrounding hills with measured distances.
No Foolin' Foot Race in San Carlos on April 24, 2027 offers 15K, 10K, 5K and a 1K kids trail course across Big Canyon, Eaton and Pulgas Ridge, with proceeds supporting local open space trail maintenance.
Trail races at Mt Tamalpais State Park on April 24, 2027 offering Half Marathon and 10K courses on coastal ridge single-track with ocean and lagoon views.
May 2027
A 62-mile trail ultramarathon in the Marin Headlands with over 11,000 feet of climb, staffed aid stations, sustainability practices, and a 400-runner field limit.
Trail runs from Stinson Beach up into Muir Woods with Marathon, Half Marathon and 7 Mile options, marked singletrack, several aid stations, and a 6.5 hour course cut-off.
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
Experience a 100 mile point to point journey through the East Bay with 18,000 feet of vertical gain and breathtaking views from the Golden Gate to Mt. Diablo.
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.
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.