Events
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12 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
05/04/24 Little Loco Forest Ranch Backyard , 6 Hours , 12 Hours
05/25/24 Nanny Goat Riverside 6 Hours , 12 Hours , 24 Hours , 100 Miles
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
07/13/24 Dirty Dozen and Half Dozen Endurance Run Pinole 6 Hours , 12 Hours
09/07/24 Mendocino Running Festival Mendocino 6 Hours , 12 Hours
10/05/24 Back On The Ranch Trail Run Los Olivos 6 Hours , 12 Hours , 24 Hours , 48 Hours
10/19/24 Cahuilla Rez Ultra Anza 12 Hours , 24 Hours , 100 Miles
10/26/24 Weekend at Burney Burney 12 Hours , 24 Hours
12/31/24 New Year's One Day San Francisco 6 Hours , 12 Hours , 24 Hours , 100 Miles
03/21/25 San Diego Pirate's Cove 6/12/24 Hour Run/Walk Cuyamaca Lake 6 Hours , 12 Hours , 24 Hours

Past Events

Date Event City Distances
04/20/24 Silver Moon Race - Reedley Reedley 6 Hours , 12 Hours , 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
03/16/24 J Treequinox Joshua Tree 12 Hours
02/24/24 Silver Moon Race - Paso Robles Paso Robles 6 Hours , 12 Hours , 2 Miles , 24 Hours , 10 KM , 100 Miles
02/16/24 Elevate 12 Hour Race Santa Maria 12 Hours
11/18/23 Captain's Winter Solstice Runaround Modesto 6 Hours , 12 Hours
11/04/23 Boundiful Endurance Runs Hemet 6 Hours , 12 Hours , 24 Hours , 100 Miles
09/23/23 Ride To Walk Endurance Race Lincoln 6 Hours , 12 Hours , 24 Hours , 48 Hours , 100 Miles
08/12/23 South Bay 24 San Diego 7 Hours , 12 Hours , 24 Hours
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
10/29/22 Atlas Trail Series- Two Trees Challenge Ventura 6 Hours , 12 Hours
01/15/22 One Day In Auburn Auburn 6 Hours , 6 Hours , 12 Hours , 12 Hours , 24 Hours , 24 Hours
11/13/21 Day On The Ranch Quincy 6 Hours , 12 Hours , 24 Hours
07/10/21 Sisyphus Ultra Challenge Hemet Backyard , 12 Hours , 24 Hours , 48 Hours , 100 Miles , 200 Miles
08/30/20 DSE Distance Classic San Francisco 6 Hours , 12 Hours
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
10/06/17 Moonlight Mooncake Run San Diego 12 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
09/24/12 Race Against The Clock San Francisco 12 Hours
08/13/11 Hotter than Hell Cameron Park 6 Hours , 12 Hours
10/23/10 San Francisco One Day San Francisco 12 Hours , 24 Hours
06/12/10 Lake Merritt Half Day Oakland 6 Hours , 12 Hours
12/27/09 Big Cat Challenge Huntington Beach 12 Hours
08/01/09 12 Hours at Cool Cool 12 Hours
05/09/09 Ayala Park Ayala Park 6 Hours , 12 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
08/01/97 Orange 12 Hour Run Orange 12 Hours
03/18/95 Redwood Empire 12 Hour Run Santa Rosa 12 Hours

Recent Results
Mt. Si Relay & Trail Runs 50K
Horseshoe Lake Trail Run 50K
Spokane River Run 50K
Cobscook Backyard Ultra 50M
Cobscook Backyard Ultra 50K
Mt. Si Relay & Trail Runs 50M
Earth Day 50K 50K
Royal Gorge Groove 50K
Red Rocks of Sedona Trail Races 34M
Red Rocks of Sedona Trail Races 50M
Loud Thunder 50 50K
Loud Thunder 50 50M
Stillhouse 100k 100K
Forget the PR Mohican 50k and 25k 50K
Run with the Goats 50K
Mad City 50K
Mad City 100K
Sinister Night Runs 54K
Spitfire Ultra Trail Challenge 55K
The Foxtail 50K