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Lean Horse Ultra Marathon

Custer, South Dakota · Saturday, July 31, 2027 · 100 Mile, 50 Mile, 30 Miles, 20 Miles, Marathon

Official race page & registration ↗
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Lean Horse Ultra Marathon takes place on Saturday, July 31, 2027 in Custer, South Dakota. The race offers 5 distances: 100 Mile, 50 Mile, 30 Miles, 20 Miles, Marathon. For anyone travelling in, Rapid City is about 31 miles away.

The 100 Mile is rare in South Dakota: only three races on the calendar offer it.

Date
Saturday, July 31, 2027
Location
Custer, South Dakota
Distances
100 Mile, 50 Mile, 30 Miles, 20 Miles, Marathon

Listing from the 2027 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Correct this listing.

Making a race weekend of it?

Stay near the start line in Custer: check in Jul 30, out Aug 1.

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Common questions

When is Lean Horse Ultra Marathon?

Lean Horse Ultra Marathon is scheduled for Saturday, July 31, 2027.

Where is Lean Horse Ultra Marathon held?

Lean Horse Ultra Marathon is held in Custer, South Dakota. It is about 31 miles from Rapid City.

What distances does Lean Horse Ultra Marathon offer?

The listed distances are 100 Mile, 50 Mile, 30 Miles, 20 Miles, Marathon.

How do I register for Lean Horse Ultra Marathon?

Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.

More races nearby

Within about 60 miles, ordered by approximate straight-line distance between listed locations.

See every race on the South Dakota calendar, South Dakota Ultras, or use the Race Finder for maps and filters.