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Hundred·Atlas

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Race data compiled from public sources; dates change — always confirm with the race organizer. Terrain: Mapzen/AWS Open Data, USGS 3DEP.

CA
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Pacific region

100 mile races in California

19 hundred-mile ultras in California — mapped, dated, and rated.

19 races7 qualifiers5 lotteriesSee them on the map ↗
AUG28'26

Run De Vous

San Martin, CA

▲ 4,000 ftLoop
OCT3'26

Angeles Crest

WSHR

Altadena, CA

▲ 18,500 ftPoint to pointLottery
OCT9'26

Kodiak

WS

Big Bear Lake, CA

▲ 17,500 ftLoop
OCT17'26

Lake Sonoma

Geyserville, CA · 101 mi

OCT23'26

San Diego 200

Escondido, CA · 200 mi

▲ 19,000 ftLoop
OCT28'26

Machete Trail Madness

Perris, CA

▲ 14,000 ftLoop
NOV7'26

Rio Del Lago

WS

Granite Bay, CA

▲ 12,500 ftOut & back
APR23'27

Canyons

WS

Auburn, CA

▲ 18,000 ftPoint to point
APR30'27

San Diego

WS

Lake Cuyamaca, CA

▲ 13,000 ftLoopLottery
MAY12'27

Born to Run

Los Olivos, CA

▲ 14,000 ftLoop
MAY22'27

Nanny Goat

Riverside, CA

▲ 3,000 ftLoop
JUL27'26

Badwater 135

Death Valley, CA · 135 mi

▲ 15,000 ftPoint to pointLottery
JUN19'26

Burney Mountain

Burney, CA

▲ 12,000 ftLoop
JUN13'26

Cool Moon

Cool, CA

▲ 16,000 ftLoop
JUN12'26

Tahoe 200

WSHR

Homewood, CA · 200 mi

▲ 39,000 ftLoopLottery
JUN27'26

Western States

WS

Olympic Valley, CA

▲ 17,000 ftPoint to pointLottery
TBA

Best Runner Leaves No Tracks

Del Mar, CA

▲ 10,000 ftLoop
TBA

Loco Challenge

Butte Meadows, CA

▲ 9,500 ftOut & back
TBA

SISU

Monrovia, CA

Loop

Nearby states

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