-
RunThrough Long Beach 5K, 10K & Half Marathon
Along Long Beach's spectacular Pacific coastline
-
American River 50 Mile Endurance Run
Follows the American River Parkway to Auburn
-
-
Brisbane Marina 10K, UjENA 5K, Double 15K, and Kids 1 Mile
Past two marinas on San Francisco Bay
-
19th ANNUAL WITH HOPE 5K
5K supporting suicide prevention awareness
-
SACTOWN Run
Sacramento's fast, flat course, built for speed
-
Carlsbad 5000
Nicknamed the World's Fastest 5K
-
Modesto Marathon
California's flat, fast spring marathon
-
-
Ragnar Road SoCal
196 miles down the Southern California coast
-
Lake Sonoma 100K
Steep wine-country climbs above Lake Sonoma
-
Great Race of Agoura Hills
Half marathon climbs canyon ranch land to a summit view
-
Santa Ana Fun Run
10K and 5K start near Santa Ana's Civic Center
-
San Diego Beach & Bay Half Marathon
Loop past SeaWorld, Belmont Park and Mission Beach
-
-
-
-
Leona Divide
Through the San Gabriel Mountains in Angeles National Forest
-
Mountains 2 Beach Marathon and Half
Net-downhill 26.2 from Ojai's mountains to the Pacific
-
-
The Canyons Endurance Runs by UTMB
Along the Western States Trail's river canyons
-
-
Big Sur Marathon
Highway One cliffs and a grand piano at Bixby Bridge
-
San Diego 100
100 miles linking the PCT, Noble Canyon, Lake Cuyamaca
Save any of these to your season in RunCalendar and hear the morning entries open. Free on iPhone, no account needed.
Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.