Ultra races in California, United States — 2026 running calendar

Orange County Multisport Festival

Mission Viejo, California, United States

25 Apr, 2027 (Sun)

$45.00 - $250.00

Triathlon, Aquabike, Running

Ultra 5K

100 miles to Auburn

Auburn, California, United States

01 Jun, 2026 (Mon) – 01 Jul, 2026

Running

Ultra

Cinderella Trail Run

Oakland, California, United States

30 May, 2026 (Sat)

Trail running, Running

8K Half-Marathon 30K Marathon +2

Pasadena Trails 50K Solo/50k Relay/10K

Pasadena, California, United States

24 May, 2026 (Sun)

Running

Ultra 10K

Grizzly Peak Trail Run

Berkeley, California, United States

09 May, 2026 (Sat)

Trail running, Running

10K Half-Marathon 30K Marathon +2

Quicksilver 100K and 50K

San Jose, California, United States

09 May, 2026 (Sat)

Running

Ultra 48.8K

Suvidha International In-Person and Virtual 5K

Folsom, California, United States

09 May, 2026 (Sat) – 31 May, 2026

Running

Ultra

2026 Cal Tri Ventura - 5.3.26

Ventura, California, United States

03 May, 2026 (Sun)

Triathlon, Running, Swimming

Ultra 4.8K 1.5K 9.7K

Folsom Lake Trail Run

Folsom, California, United States

02 May, 2026 (Sat)

Running

48.9K 34.8K Half-Marathon 11.3K

Finish The Ride and Finish The Run Griffith Park

Los Angeles, California, United States

02 May, 2026 (Sat) – 03 May, 2026

Running, Cycling

1K 5K 10K 15K +7

Run With Your Perrijo 50 Mile Virtual Challenge

Livermore, California, United States

01 May, 2026 (Fri) – 31 May, 2026

Running

Ultra

Summer Vibes Virtual Challenge 50 Miles, 100 Miles, 200 Miles, 300 Miles

Long Beach, California, United States

27 Apr, 2026 (Mon) – 30 Sep, 2026

$40.00 - $50.00

Running

Ultra