| Month |
Race Name |
Events |
Location |
Near |
|
| January |
Calico Trail Run |
50 km, 30 km |
CA, United States |
Calico |
|
| January |
Angel Island Trail Runs |
25 km, 16 km, 8 km |
CA, United States |
Tiburon |
|
| January |
Pacifica Trail Run |
50 km, 30 km, 21 km, 9 km |
CA, United States |
Pacifica |
|
| February |
Death Valley Trail Marathon & 30K |
26.2 mi, 30 km |
CA, United States |
Death Valley |
|
| February |
Woodside Kings Mountain Half Marathon & 5 Mile |
13.1 mi, 5 mi |
CA, United States |
Woodside |
|
| February |
Twin Peaks Ultra 50/50 |
50 mi, 50 km |
CA, United States |
Rancho Santa Margarita |
|
| March |
Marin Trail 10K & 20K |
20 km, 10 km |
CA, United States |
San Rafael |
|
| March |
Way Too Cool 50K |
50 km |
CA, United States |
Cool |
|
| March |
Catalina Marathon |
26.2 mi, 10 km, 5 km |
CA, United States |
Avalon |
|
| March |
Romancing the Island |
25 km, 12 km |
CA, United States |
Tiburon |
|
| March |
Napa Valley Trail Marathon, Half Marathon & 10K |
26.2 mi, 13.1 mi, 10 km |
CA, United States |
Calistoga |
|
| March |
Pirates Cove Trail Run |
50 km, 30 km, 20 km, 8 km |
CA, United States |
Sausalito |
|
| March |
Diablo Trails Challenge |
32.1 mi |
CA, United States |
Walnut Creek |
|
| March |
Napa Valley Half marathon |
13 mi |
CA, United States |
Napa |
|
| April |
Golden Gate Headlands |
26.2 mi, 13.1 mi, 7 mi |
CA, United States |
Sausalito |
|
| April |
Muir Woods Marathon, 25K & 7 Mile |
26.2 mi, 25 km, 7 mi |
CA, United States |
Stinson Beach |
|
| April |
Diablo Marathon & 50 Mile Endurance Run |
50 mi, 26.2 mi |
CA, United States |
Clayton |
|
| May |
Quicksilver 50 Mile, 50K and 25K |
50 mi, 50 km, 25 km |
CA, United States |
San Jose |
|
| May |
XTERRA Malibu Creek Trail Challenge Scramble |
14 mi, 4 mi |
CA, United States |
Calabasas |
|
| May |
Spring Salmon Run |
10 km |
CA, United States |
Nevada City |
|
| May |
Big Basin Redwoods Trail Run |
50 km, 25 km, 17 km, 9 km |
CA, United States |
Boulder Creek |
|
| June |
Western States Endurance Run |
100 mi |
CA, United States |
Fresno |
|
| June |
Mount Diablo Trail Run (Summer) |
50 km, 25 km, 8 km |
CA, United States |
Clayton |
|
| June |
Holcomb Valley 33/15 Mile Trail Run |
33 mi, 15 mi |
CA, United States |
Big Bear Lake |
|
| June |
Valley Crest Half Marathon |
13.1 mi |
CA, United States |
Trazana |
|
| June |
Woodminster Cross Country Race |
9 mi |
CA, United States |
Oakland |
|
| June |
Double Dipsea (Walt Stack DSE Double Dipsea) |
13.7 mi |
CA, United States |
Stinson Beach |
|
| June |
Xterra Marin Headlands Trail Run |
21 km, 7 km |
CA, United States |
San Francisco |
|
| July |
Salt Point Trail Run |
50 km, 26 km, 11 km |
CA, United States |
Jenner |
|
| July |
The Kirkwood Klimb Mountain Trail Run |
10 km, 5 km |
CA, United States |
Kirkwood |
|
| August |
Montana de Oro Trail Runs |
50 km, 25 km, 12 km, 8 km |
CA, United States |
Los Osos |
|
| August |
Bulldog 50K Ultra / 25K Trail Run |
50 km, 25 km |
CA, United States |
Calabasas |
|
| August |
Golden Gate Headlands 50K |
50 km |
CA, United States |
Sausalito |
|
| August |
BULLDOG 25K MALIBU CANYON |
25 km, 8 mi |
CA, United States |
Malibu |
|
| August |
The East Bay Enchantment |
10 mi, 10 km, 5 km |
CA, United States |
Castro Valley |
|
| August |
The Northstar at Tahoe™ Nirvana Mountain Trail Run |
10 km |
CA, United States |
Truckee |
|
| August |
Squaw Valley Mountain Run |
3.6 mi |
CA, United States |
Truckee |
|
| September |
Sierra Nevada Endurance Run |
53.2 mi |
CA, United States |
Sacramento |
|
| September |
Santa Cruz Mountains Trail Runs |
50 km, 29 km, 21 km, 10 km |
CA, United States |
Santa Cruz |
|
| September |
Redwood Park Trail Run |
50 km, 30 km, 20 km, 10 km |
CA, United States |
Oakland |
|
| September |
Angeles Crest 100-Mile Endurance Run |
100 mi |
CA, United States |
Wrightwood |
|
| September |
Tough As Granite Half Marathon |
13.1 mi, 10 km, 5 km |
CA, United States |
Granite Bay |
|
| September |
The Napa Valley Stomp 1/2 marathon, 10k and 5k Trail Run |
13.1 mi, 10 km, 5 km |
CA, United States |
Napa |
|
| September |
Sunrise over Sonoma Trail Run |
10 mi, 5 mi |
CA, United States |
Healdsburg |
|
| October |
Dick Collins Firetrails 50 |
50 mi |
CA, United States |
Castro Valley |
|
| October |
Carmel Valley Trail Run |
50 km, 25 km, 19 km, 8 km |
CA, United States |
Carmel Valley |
|
| October |
Big Sur Trail Marathon, Half Marathon & 5 Mile |
26.2 mi, 13.1 mi, 5 mi |
CA, United States |
Big Sur |
|
| October |
San Diego 100 Mile Endurance Run |
100 mi |
CA, United States |
Lake Morena |
|
| October |
Whiskeytown Trail Runs |
50 km, 30 km, 8.3 mi, 1 mi |
CA, United States |
Redding |
|
| October |
Napa Valley Wine Country Marathon, Half Marathon & 10K |
26.2 mi, 13.1 mi, 10 km |
CA, United States |
Calistoga |
|
| October |
Mount Tamalpais 10k Trail Run |
10 km |
CA, United States |
Mill Valley |
|
| November |
Stinson Beach Marathon |
26.2 mi, 25 km, 7 mi |
CA, United States |
Stinson Beach |
|
| November |
Stinson Beach Trail Run |
50 km, 30 km, 20 km, 12 km |
CA, United States |
Stinson Beach |
|
| November |
Santa Monica Mountains Trail Run |
50 km, 30 km, 18 km, 9 km |
CA, United States |
Malibu |
|
| November |
XTERRA Topanga Turkey Trot |
15 km, 10 km, 5 km |
CA, United States |
Calabasas |
|
| November |
Quad Dipsea |
28.4 mi |
CA, United States |
Mill Valley |
|
| November |
Run the River Marathon & Ultramarathon |
50 km, 26 mi |
CA, United States |
Folsom |
|
| November |
McNally's Trail Burger Run and Walk |
26.2 km |
CA, United States |
Kernville |
|
| December |
OTHTC High Desert 50 km Ultra & 30km |
50 km, 30 km |
CA, United States |
Ridgecrest |
|
| December |
Woodside Trail Run |
50 km, 35 km, 17 km, 10 km |
CA, United States |
Woodside |
|
| December |
Hark the Herald Angels Run 12K & 25K |
25 km, 12 km |
CA, United States |
Tiburon |
|
| December |
Muir Beach Trail Run |
50 km, 33 km, 17 km, 11 km |
CA, United States |
Muir Beach |
|
| December |
Rodeo Beach Trail Run |
50 km, 30 km, 20 km, 8 km |
CA, United States |
Rodeo Beach |
|
