Hundred·Atlas
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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.

SD
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Midwest region

100 mile races in South Dakota

2 hundred-mile ultras in South Dakota — mapped, dated, and rated.

2 racesSee them on the map ↗
JUN26'26

Black Hills

Sturgis, SD

▲ 16,000 ftOut & back
JUL31'26

Lean Horse

Custer, SD

▲ 5,000 ftOut & back

Nearby states

North DakotaNebraskaKansasMinnesotaIowaMissouriWisconsinIllinoisMichiganIndianaOhio

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