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    100K ultramarathons in Indiana, United States

    United States
    100K
    Indiana

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    4 races

    Jackson County Ultras

    Jackson County Ultras

    Dec 5-6, 2026 (Sat-Sun)

    Brownstown, Indiana, United States

    Technical singletrack and rugged trails through Jackson-Washington State Forest, with scenic southern Indiana views and a community hub at Pyoca Camp

    50K
    100K
    MoMoFo100

    MoMoFo100

    Jun 4, 2027 (Fri)

    Martinsville, Indiana, United States

    100km through old-growth forest on mostly singletrack, with rock formations, lakes and creeks, plus roughly 8,500 feet of climbing

    100K
    MoMoFo 100K & 20 Mile Fun Run

    MoMoFo 100K & 20 Mile Fun Run

    Jun 4, 2027 (Fri)

    Indiana, Indiana, United States

    100K
    MoMoFo100K and 20 Mile Fun Run with Virtual Options

    MoMoFo100K and 20 Mile Fun Run with Virtual Options

    Jun 4-5, 2027 (Fri-Sat)

    Martinsville, Indiana, United States

    100km of singletrack through Morgan Monroe State Forest, rugged rock formations, old growth woodland, creek crossings, and 8,500 feet of elevation gain

    100K

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