100 KM Ultra Running Events in California

Upcoming Events

Date Event City Distances
08/20/22 Kodiak Ultra Marathons Big Bear Lake 50 KM, 100 KM, 100 Miles
09/17/22 China Peak Running Festival Lakeshore 50 KM, 100 KM
09/24/22 Dick Collins Firetrails Castro Valley 50 Miles, 100 KM
10/08/22 Ultra Trails Lake Tahoe Lake Tahoe 50 KM, 100 KM, 100 Miles
10/08/22 Cuyamaca 100k Julian 100 KM
10/08/22 Ruth Anderson San Francisco 50 KM, 50 Miles, 100 KM
11/19/22 Golden Gate Trail Classic San Francisco 50 KM, 100 KM
12/03/22 San Joaquin River Trail Friant 50 KM, 100 KM
01/28/23 Sean O'Brien 100k/50M Malibu 50 KM, 50 Miles, 50 Miles, 100 KM, 100 KM
02/25/23 Sycamore Canyon 100k & 50k San Diego 50 KM, 100 KM
04/22/23 Leona Divide Lake Hughes 50 KM, 50 Miles, 100 KM
04/22/23 Forest Ranch Four Forest Ranch 50 KM, 100 KM
04/28/23 Canyons Endurance Runs Auburn 50 KM, 100 KM, 100 Miles
05/06/23 Miwok Stinson Beach 100 KM
06/03/23 The Loco Go Big or Go Home Challenge Forest Ranch 50 KM, 100 KM, 100 Miles
06/10/23 Cool Moon Trail Races Cool 50 Miles, 100 KM, 100 Miles
08/05/23 Kirkwood's Ultras Kirkwood 50 KM, 46 Miles, 100 KM

Past Events

Date Event City Distances
08/11/22 Headlands Endurance Runs Sausalito 50 Miles, 100 KM, 75 Miles, 100 Miles, 150 Miles
06/25/22 Orange Curtain Cerritos 6 Hours, 12 Hours, 24 Hours, 50 KM, 100 KM
06/18/22 Tahoe 100k Lake Tahoe 100 KM
05/28/22 Lake Sonoma 100k/55k Healdsburg 55 KM, 100 KM
05/21/22 Bishop High Sierra Bishop 50 KM, 55 KM, 50 Miles, 100 KM
05/14/22 Quicksilver San Jose 50 KM, 50 Miles, 100 KM
03/26/22 No'to'mom Endurance Runs Sacramento 50 KM, 100 KM
02/19/22 FOURmidable Cool 50 KM, 100 KM
02/05/22 Happy Chinese New Year San Diego 50 KM, 50 Miles, 100 KM
02/05/22 Fort Ord Trail Run Monterey 50 KM, 100 KM
02/05/22 Jed Smith Sacramento 50 KM, 50 Miles, 100 KM
02/05/22 Ordnance 100K Salinas 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
03/05/10 Coyote Two Moon Ojai 100 KM, 100 Miles
08/23/08 Wildest Run in the West Soda Springs 50 KM, 50 Miles, 100 KM
02/24/01 Catalina Island Catalina 100 KM