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    May ultramarathons in Michigan, United States

    May
    United States
    Michigan

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    5 races

    Traverse City Trail Running Festival

    Traverse City Trail Running Festival

    May 7-8, 2027 (Fri-Sat)

    Traverse City, Michigan, United States

    Singletrack routes through Pere Marquette Forest, distance options up to 100K, forested trails and relay format at Timber Ridge RV & Recreation Resort

    50K
    75K
    100K
    Badlands Race Series

    Badlands Race Series

    May 15-16, 2027 (Sat-Sun)

    Brighton, Michigan, United States

    Night-time 50K and 100K trail races on Island Lake Recreation Area’s looped course, starting at 10 PM and running through scenic forested trails

    50K
    100K
    Lynette Tenaglia Memorial Run

    Lynette Tenaglia Memorial Run

    May 20, 2027 (Thu)

    Cement City, Michigan, United States

    50mi
    100mi
    72h
    48h
    24h
    Yankee Springs Trail Run

    Yankee Springs Trail Run

    May 28-29, 2027 (Fri-Sat)

    Middleville, Michigan, United States

    Single-track trails through scenic Yankee Springs with 50k and 100k distances; Long Lake Outdoor Center lodging available

    50K
    100K
    Back 9 Endurance Run

    Back 9 Endurance Run

    May 29, 2027 (Sat)

    Copper Harbor, Michigan, United States

    Roughly 3.5-mile loop at Keweenaw Mountain Lodge with Back 9 trails, golf course stretches, rolling hills, mud, forest, and Brockway Mountain views.

    24h
    12h

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