Hundred·Atlas
CalendarMapRacesSubmit a Race

Hundred·Atlas

CalendarMapRacesSubmit a Race
By stateBy monthWS qualifiersHardrock qualifiersFirst hundred
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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.

Dec
← The calendar

By month

100 mile races in December

17 hundred-mile ultras on the December calendar — mapped, dated, and rated. A ~ marks a projected date not yet announced.

17 races1 qualifiersSee them on the map ↗
DEC4'26

Blood Rock

Pelham, AL

▲ 17,000 ftLoop
DEC5'26

Brazos Bend

WS

Needville, TX

▲ 1,000 ftLoop
DEC5'26

Crooked Tree

Shepherdsville, KY

▲ 16,000 ftLoop
DEC5'26

Devil Dog

Triangle, VA

▲ 11,000 ftLoop
DEC5'26

Festivus

Middleburg, FL

▲ 3,150 ftLoop
DEC5'26

Hitchcock Experience

Honey Creek, IA

▲ 22,000 ftLoop
DEC5'26

Last Chance

Rogersville, MO

▲ 6,000 ftLoop
DEC5'26

Loup Garou

Ville Platte, LA

▲ 11,000 ftLoop
DEC11'26

Frigid Beast Feast

Springfield, LA

Loop
DEC12'26

Beast of the East

Kings Mountain, NC

▲ 19,000 ftOut & back
DEC12'26

Daytona

Jacksonville Beach, FL

▲ 1,000 ftPoint to point
DEC12'26

Spirit of Syllamo

Fifty-Six, AR

▲ 18,000 ftLoop
DEC19'26

Ancient Oaks

Titusville, FL

▲ 3,000 ftLoop
DEC27~'26

Charleston

Mount Pleasant, SC

▲ 1,200 ftOut & back
DEC30'26

Go Big 100

Volcano, HI

▲ 5,000 ftLoop
DEC30'26

Go Big 260

Hilo, HI · 260 mi

▲ 18,000 ftLoop
DEC31'26

Run Undead

Pelham, AL

▲ 5,000 ftLoop
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