100 KM Ultra Running Events in California

Upcoming Events

Date Event City Distances
04/13/24 Machete Trail Madness 100k & 50k Perris 50 KM , 100 KM
04/20/24 Leona Divide Lake Hughes 50 KM , 50 Miles , 100 KM
04/27/24 Canyons Endurance Runs Auburn 50 KM , 100 KM , 100 Miles
05/03/24 Coyote Two Moon Ojai 100 KM , 100 Miles
05/04/24 Miwok Stinson Beach 100 KM
05/11/24 Quicksilver San Jose 50 KM , 100 KM
05/18/24 Bishop High Sierra Bishop 55 KM , 50 Miles , 100 KM
06/01/24 The Loco Go Big or Go Home Challenge Forest Ranch 50 KM , 100 KM , 100 Miles
06/01/24 Cool Moon Trail Runs Cool 50 Miles , 100 KM , 100 Miles
06/08/24 Point Mugu Trail Races (SAMO 100 Mile) Malibu 50 KM , 50 Miles , 100 KM
06/14/24 Tahoe 100k Lake Tahoe 100 KM
06/15/24 SF Half Day San Francisco 6 Hours , 12 Hours , 100 KM
06/22/24 Orange Curtain Cerritos 12 Hours , 24 Hours , 50 KM , 100 KM
07/27/24 Lost Sierra Endurance Race Downieville 50 KM , 100 KM
08/23/24 Run-de-Vous San Martin 50 KM , 50 Miles , 100 KM , 100 Miles
08/31/24 The Rubicon Foresthill 50 KM , 100 KM , 82 Miles , 100 Miles
09/07/24 China Peak Running Festival Lakeshore 50 KM , 100 KM
09/28/24 Dick Collins Firetrails Castro Valley 50 Miles , 100 KM
10/05/24 Cuyamaca 100k Julian 100 KM
10/11/24 Kodiak Ultra Marathons Big Bear Lake 50 KM , 100 KM , 100 Miles
10/19/24 California Fall Classic 100K and 55K Healdsburg 55 KM , 100 KM
12/07/24 San Joaquin River Trail Friant 50 KM , 100 KM

Past Events

Date Event City Distances
02/24/24 Sycamore Canyon 100k & 50k San Diego 50 KM , 100 KM
02/17/24 FOURmidable Cool 50 KM , 100 KM
02/03/24 Jed Smith Sacramento 50 KM , 50 Miles , 100 KM
01/27/24 Fort Ord Trail Run Monterey 50 KM , 100 KM
01/27/24 Sean O'Brien 100k/50M/50k Malibu 50 KM , 50 Miles , 100 KM
05/20/23 Forest Ranch Four Forest Ranch 50 KM , 100 KM
02/04/23 Happy Chinese New Year San Diego 50 KM , 50 Miles , 100 KM
01/28/23 Ordnance 100K Salinas 100 KM
11/19/22 Best Runner (Best of San Diego ) San Diego 50 KM , 50 Miles , 100 KM , 120 KM , 140 KM , 100 Miles
10/08/22 Ultra Trails Lake Tahoe Lake Tahoe 50 KM , 50 Miles , 100 KM , 100 Miles
09/10/22 Overlook Endurance Runs Foresthill 50 KM , 50 Miles , 100 KM
03/26/22 No'to'mom Endurance Runs Sacramento 50 KM , 100 KM
10/09/21 Elder Creek Trail Runs 50mile/100k Anza 24 Hours , 50 KM , 50 Miles , 100 KM
08/14/21 Castle Peak 100k Truckee 100 KM
07/03/21 Lovers Leap of Faith Kyburz 50 KM , 50 Miles , 100 KM
06/19/21 The Sierra Azul Ultras Almaden 50 KM , 50 Miles , 100 KM
01/24/21 Hoka One One Project Carbon X Sacramento 50 KM , 50 Miles , 100 KM
11/21/20 Chimera Cleveland National Forest 40 Miles , 100 KM , 100 KM , 100 Miles , 100 Miles
05/09/20 Baldy Marathons Mount Baldy Ski Lodge 50 KM , 40 Miles , 100 KM , 100 Miles
04/18/20 Henry Coe Adventure 100K Morgan Hill 100 KM
10/12/19 Santa Barbara 100 Santa Barbara 50 KM , 50 Miles , 100 KM , 100 Miles
05/13/17 Gold Rush Folsom 50 KM , 100 KM
04/22/17 Razorback Endurance Race San Martin 6 Hours , 12 Hours , 24 Hours , 48 Hours , 72 Hours , 50 KM , 50 Miles , 100 KM , 100 Miles , 125 Miles
09/24/16 Ultra Race of Champions (UROC) - CA Auburn 50 KM , 100 KM
01/09/16 Long Beach Enlightened Ultra Long Beach 50 KM , 50 Miles , 100 KM , 100 Miles
10/10/15 Joshua Tree Ultra Joshua Tree 50 KM , 50 Miles , 100 KM , 100 Miles
05/02/15 Nirvana Ultra Big Bear Big Bear 50 KM , 50 Miles , 100 KM , 100 Miles
11/23/13 Run d'Amore San Martin Unknown Miles , 50 KM , 50 Miles , 100 KM , 100 Miles
09/24/11 Sierra Nevada Endurance Run Granite Bay 50 Miles , 52.4 Miles , 100 KM
02/26/11 Pony Express Cameron Park 50 KM , 50 Miles , 100 KM
06/05/10 Blue Canyon Santa Barbara 50 KM , 50 Miles , 100 KM
08/23/08 Wildest Run in the West Soda Springs 50 KM , 50 Miles , 100 KM
02/24/01 Catalina Island Catalina 100 KM