Alameda County
Trail Running Calendar near Alameda County 2026-2027
Explore the top trail runs near Alameda County for 2026-2027! We've gathered 37 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
Point to point half marathon from the Hacienda Entrance up to Mt Umunhum with 4,767 feet of ascent, marked aid stations, drop bag service and shuttle transport back to the start.
A trail and road running event at Quarry Lakes Regional Recreation Area offering Half Marathon, 10K, 5K and a remote runner option on March 27, 2027.
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.
Badger Cove is a running event in Livermore, CA on April 17, 2027 offering a half marathon, 10K, 5K and a hiker division. Registration opens January 1 and closes February 2 with fees varying by event.
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.
May 2027
Run the scenic creek trails of San Jose and enjoy a post race craft beer festival featuring local brewers, a beer mile, and finisher medals at Almaden Lake Park.
July 2027
August 2027
A scenic trail event from Lake Chabot Marina offering a 50K loop and a half marathon with staffed aid stations and a plant based finish festival.