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    July ultramarathons in South Dakota, United States

    July
    United States
    South Dakota

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    2 races

    Crazy Bear Ultra

    Crazy Bear Ultra

    Jul 18, 2026 (Sat)

    Sioux Falls, South Dakota, United States

    Scenic mountain loops with approximately 1,200 feet of elevation gain per six-mile circuit, start and finish at Bear Den Chalet

    50K
    Lean Horse

    Lean Horse

    Jul 31-Aug 1, 2026 (Fri-Sat)

    Custer, South Dakota, United States

    Forgiving running surface and gentle elevation changes in a small town South Dakota setting, with 50 and 100-mile ultramarathon distances.

    50K
    50mi
    100mi

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