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

ZombieRunner Halloween

San Jose, California, United States

31 Oct, 2026 (Sat)

Free - $80.00

Trail running, Running

5K 10K Half-Marathon Marathon +6

Two Cities Marathon

Fresno, California, United States

01 Nov, 2026 (Sun)

$55.00 - $130.00

Running

Marathon Half-Marathon 10K 5K

2026 Optimism Cal Tri Newport Dunes - 11.1.26

Newport Beach, California, United States

01 Nov, 2026 (Sun)

$43.86 - $153.86

Triathlon, Running, Swimming

Ultra 4.8K 1.5K 9.7K

DINO DASH

Tustin, California, United States

01 Nov, 2026 (Sun)

Free - $35.00

Running, Cycling

2K 5K 10K 15K +2

Día de Muertos - Viva la Vida - 5K, 10K, and Half Marathon by Califlow Runs

Long Beach, California, United States

01 Nov, 2026 (Sun)

$25.00 - $58.99

Running

5K 10K Half-Marathon 1.6K

Almond Bowl 5K & 10K November 1st, 2026

Chico, California, United States

01 Nov, 2026 (Sun)

$45.00 - $55.00

Running

5K 10K

Las Calaveritas 10 Miler

Lake View Terrace, California, United States

01 Nov, 2026 (Sun)

$39.00 - $79.00

Running

16.1K 8K 5K

Beer City Half™ OC

Santa Ana, California, United States

07 Nov, 2026 (Sat)

$25.00 - $95.00

Running

Half-Marathon 10K 5K 1.6K +1

RUN FOR FREEDOM

San Dimas, California, United States

07 Nov, 2026 (Sat)

$40.00 - $55.00

Running

5K 10K

Palm Springs Pride 5K Run & Walk

Palm Springs, California, United States

07 Nov, 2026 (Sat)

$25.00 - $40.00

Running

5K

CUHSD ED Foundation: HERO 5K

Campbell, California, United States

07 Nov, 2026 (Sat)

$50.00

Running

5K

Lake Chabot Trail Run

Castro Valley, California, United States

07 Nov, 2026 (Sat)

Free - $90.00

Trail running, Running

7.7K Half-Marathon 30K Marathon +4