Alameda County
Trail Running Calendar near Alameda County 2026-2027
Explore the top trail runs near Alameda County for 2026-2027! We've gathered 42 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2027
Trail races through shaded redwood forest at Sanborn County Park with steep climbs, fast descents and three distances 50K, half marathon and 10K.
October 2027
A multi-distance trail event at Almaden Quicksilver Park with marked out-and-back courses, aid stations, toilets, summit sections to Bald Mountain and Mt Umunhum, and varied time limits.