Running Races in Castro Valley, California 2026 | Browse All Races

There are 6 running races in Castro Valley, California in 2026. The next is the Lake Chabot Trail Run on November 7. Distances include half marathons, trail runs.

Lake Chabot Trail Run

Sat, Nov 7 · Castro Valley, CA Castro Valley

Trail 5K8KHalf Marathon +3

From $25 Open 30 spots left

Brazen New Year's Eve

Fri, Jan 1 · Castro Valley, CA Castro Valley

Virtual NYE 5KNYE 10KNYE HALF MARATHON +1

From $50 Open

Brazen New Year's Day

Fri, Jan 1 · Castro Valley, CA Castro Valley

Virtual 5K10KHALF MARATHON +1

From $50 Open

SPASM Lake Chabot Trail Run

Sat, Apr 24 · Castro Valley, CA Castro Valley

Trail 5K8K8K +8

From $0 Open

2027 Lake Chabot Trail Challenge (Half Marathon & 5K)

Sun, Jun 6 · Castro Valley, CA Castro Valley

Trail 5K Run5K RunHalf Marathon +1

From $40 Open

Bad Bass

Sat, Jul 24 · Castro Valley, CA Castro Valley

Virtual 5K5K10K +6

From $55 Closed

Running Races in Castro Valley, California — 2026