Events
Race Directors

24 Hours Ultra Running Events in California

All 50 KM 50 Miles 100 KM 100 Miles 6 Hours 12 Hours 24 Hours

Upcoming Events

Date Event City Distances
06/19/26 Orange Curtain Cerritos 6 Hours , 12 Hours , 24 Hours , 50 KM , 100 KM
07/24/26 South Bay 24 San Diego 6 Hours , 12 Hours , 12 Hours , 24 Hours
09/18/26 Mile Madness Endurance Run Auburn 6 Hours , 12 Hours , 24 Hours , 48 Hours , 72 Hours , 100 Miles
09/19/26 Tierra Redonda Mountain Trail Run Bradley 24 Hours
10/02/26 Back On The Ranch Trail Run Los Olivos 6 Hours , 12 Hours , 24 Hours , 48 Hours
10/17/26 Cahuilla Rez Ultra Anza 12 Hours , 24 Hours , 100 Miles
10/22/26 Weekend at Burney Burney 12 Hours , 24 Hours , 48 Hours
10/23/26 Ragnar Trail SoCal Individual Warner Springs 6 Hours , 24 Hours
11/28/26 Boundiful Endurance Runs Hemet 6 Hours , 12 Hours , 24 Hours , 100 Miles
12/31/26 New Year's One Day San Jose 6 Hours , 12 Hours , 24 Hours , 100 Miles
01/29/27 24HR "The Grind" Perris 24 Hours
02/27/27 Will Rogers 24 Hour/12 Hours/6 Hour Pacific Palisades 6 Hours , 12 Hours , 24 Hours , 50 KM , 100 Miles
03/19/27 San Diego Pirate's Cove 6/12/24 Hour Run/Walk Cuyamaca Lake 6 Hours , 12 Hours , 24 Hours
04/17/27 Silver Moon Race - Kings River Reedley 6 Hours , 12 Hours , 24 Hours , 100 Miles

Past Events

Date Event City Distances
05/23/26 Nanny Goat Riverside 6 Hours , 12 Hours , 24 Hours , 100 Miles
04/17/26 Run4Kids 24 Hour Running Party Corona 6 Hours , 12 Hours , 24 Hours , 50 Miles , 100 Miles
02/27/26 Big Bloops Ultra Palo Alto 24 Hours
04/05/25 Beyond Limits Ultra Mountain Center 24 Hours , 48 Hours , 72 Hours , 50 KM , 50 Miles , 100 Miles , 200 Miles
10/26/24 REVOLUTION XT ULTRA CHALLENGE Tracy 6 Hours , 12 Hours , 24 Hours
07/06/24 SISU 24 Monrovia 24 Hours , 100 Miles
03/22/24 RUN4Kids 48r Hour Running Party Corona 6 Hours , 12 Hours , 24 Hours , 25 Hours , 48 Hours , 50 Miles , 100 Miles
02/24/24 Silver Moon Race - Paso Robles Paso Robles 6 Hours , 12 Hours , 2 Miles , 24 Hours , 10 KM , 100 Miles
09/23/23 Ride To Walk Endurance Race Lincoln 6 Hours , 12 Hours , 24 Hours , 48 Hours , 72 Hours , 100 Miles
04/29/23 Wandering Idiot Festival Of Hills Elk Creek 6 Hours , 12 Hours , 24 Hours
04/01/23 Cirque du Griffith Park 100-Mile & 6/12/24 Hour Ultra Runs Los Angeles 6 Hours , 12 Hours , 24 Hours , 100 Miles
01/15/22 One Day In Auburn Auburn 6 Hours , 6 Hours , 12 Hours , 12 Hours , 24 Hours , 24 Hours
12/26/21 DayDayUp Miramar San Diego 24 Hours
11/13/21 Day On The Ranch Quincy 6 Hours , 12 Hours , 24 Hours
10/09/21 Elder Creek Trail Runs 50mile/100k Anza 24 Hours , 50 KM , 50 Miles , 100 KM
07/10/21 Sisyphus Ultra Challenge Hemet Backyard , 12 Hours , 24 Hours , 48 Hours , 100 Miles , 200 Miles
08/01/20 River Park Ultras Lakeside Backyard , 6 Hours , 12 Hours , 24 Hours
01/18/20 Celtic Winter Classic 24 Hour Run Bakersfield 12 Hours , 24 Hours , 50 KM , 50 Miles , 100 Miles
08/17/19 Julian Station Full Moon Run Julian 12 Hours , 24 Hours
06/02/18 San Francisco Summer Solstice San Francisco 6 Hours , 12 Hours , 24 Hours
03/24/18 Montecito Cold Spring School Tuff Benefit Run Santa Barbara 6 Hours , 12 Hours , 24 Hours
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
03/25/17 Barn Burner Sanger 6 Hours , 12 Hours , 24 Hours
03/18/17 Davis Two Day Davis 12 Hours , 24 Hours , 48 Hours
02/25/17 Riverbank One Day Riverbank 6 Hours , 12 Hours , 24 Hours
12/06/14 Jester's World Record Run Bonita 6 Hours , 12 Hours , 24 Hours , 100 Miles
07/20/13 Rohring Round the Clock - Redux Chula Vista 6 Hours , 12 Hours , 24 Hours , 100 Miles
02/23/13 Rohring Round the Clock Chula Vista 6 Hours , 12 Hours , 24 Hours , 100 Miles
10/23/10 San Francisco One Day San Francisco 12 Hours , 24 Hours
11/01/05 San Diego 1 Day San Diego 12 Hours , 24 Hours
07/19/03 Jim Skophammer San Mateo 12 Hours , 24 Hours
08/29/98 Greg & Delmar's 12 & 24 Hour Adventure Run Gibson Ranch 12 Hours , 24 Hours
11/12/95 Gibson Ranch Elverta 24 Hours , 48 Hours , 72 Hours , 144 Hours , 50 Miles
08/01/91 Orange 24 Hour Run Orange 24 Hours
10/26/85 No Bullshit 24 hour Run Ventura 24 Hours

Weekly Newsletter

A roundup of the week's content and most recent race results. Sent once a week on Thursday.

Recent Results

Crater Trail Run
Decorah, IA - 55 finishers
50 KM
Run Under The Stars - Paducah
Paducah, KY - 65 finishers
10 Hours
Great Springs Trail Race - Canyon Lake
Canyon Lake, TX - 34 finishers
50 KM
Summer Sasquatch Trail Runs
Lore City, OH - 26 finishers
50 KM
Haul Ass Ultra Running Festival
Erie, CO - 20 finishers
50 Miles | 50 KM | 12 Hours | 9 Hours | 6 Hours
Sawmill Relay
Mt. Charleston, NV - 21 finishers
38.45 Miles
Three Sisters Ultra Festival
Maryville, TN - 77 finishers
24 Hours | 12 Hours | 6 Hours
Rose Canyon Ultra
Herriman, UT - 110 finishers
50 Miles | 50 KM
PCT 50
Cleveland National Forest, CA - 104 finishers
50 Miles
Marathon Monk Ultra
Hillsborough, NC - 17 finishers
100 Miles | 54 Miles | 27 Miles
View All Results