There are 15 half marathons in California scheduled for 2026. The next is the Mojave Half Marathon in Twentynine Palms on March 14. California half marathons run primarily March through November.

Bikes & Beers Anaheim

Sat, Jun 6 · Anaheim, CA Anaheim
15 MILE (10:00 AM Start Time)30 MILE (9:30 AM Start Time)30 MILE (9:00 AM Start Time) +3

Sandman Tri

Sun, Aug 23 · Aptos, CA Aptos
Sandman DuathlonSandman TriSandman Team

Bikes & Beers Ventura

Sat, Sep 19 · Ventura, CA Ventura
15 MILE (10:00 AM Start Time)30 MILE (9:00 AM Start Time)30 MILE (9:30 AM Start Time) +3