Race Discovery

5K races in California, United States — 2026 trail running calendar

30 events found

Colby Mountain Trailfest logo
Sep
05

Colby Mountain Trailfest

Butte Meadows, California, United States
Trail running
5K 12.1K 24.1K
The Honey Badger Half (& 10K/5K) logo
Sep
11

The Honey Badger Half (& 10K/5K)

Santa Venetia, California, United States
$45.00 - $105.00
Running Trail running
5K 10K Half-Marathon +2
Los Angeles Sunset Relays | 5K & Kid Run logo
Sep
12

Los Angeles Sunset Relays | 5K & Kid Run

Los Angeles, California, United States
$19.50 - $270.00
Running Trail running
16.1K 5K 1.6K 4K +1
Elevé Outside
Sep
26

Elevé Outside

Corona, California, United States
Free
Trail running
4.8K
Rock It in Chino Hills 5K & 10K logo
Oct
10

Rock It in Chino Hills 5K & 10K

Brea, California, United States
$60.00 - $70.00
Trail running
5K 10K
Lake Hodges Trail Festival logo
Oct
17

Lake Hodges Trail Festival

San Diego, California, United States
$15.00 - $145.00
Trail running Running Duathlon
50K 25.1K 15K 10.3K +7
SPACEROCK Trail Race logo
Oct
17

SPACEROCK Trail Race

Agua Dulce, California, United States
$85.00 - $175.00
Trail running
22.4K 14.3K 10K 5K
Heart of Cool Trail Run logo
Oct
17

Heart of Cool Trail Run

Cool, California, United States
$40.00 - $70.00
Trail running
5K 10K Half-Marathon
ZombieRunner Halloween logo
Oct
31

ZombieRunner Halloween

San Jose, California, United States
Free - $80.00
Trail running Running
5K 10K Half-Marathon Marathon +6
Lake Chabot Trail Run logo
Nov
07

Lake Chabot Trail Run

Castro Valley, California, United States
Free - $90.00
Trail running Running
7.7K Half-Marathon 30K Marathon +4
Epicpalooza
Nov
07

Epicpalooza

Moorpark, California, United States
$55.00 - $75.00
Trail running
10K 5K
ZombieRunner Quarry Lakes logo
Nov
14

ZombieRunner Quarry Lakes

Fremont, California, United States
Free - $70.00
Trail running Running
5K 10K Half-Marathon 3.2K +4