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Hippity Hop 5K
At Potter Park Zoo, with an Easter egg hunt
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Carpe Diem – Carpe Noctem Half Marathon and 10K
Trail race by daylight or headlamp at Proud Lake
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Martian Invasion of Races
A Boston qualifying marathon with an out of this world alien theme
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Kal-Haven Trail Run
33.5 miles point-to-point on the Kal-Haven Trail
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Big House 5K
A campus 5K finishing on the Michigan Stadium 50 yard line
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Mari Vineyards Wine Run 5K
Loops through vineyards on Old Mission Peninsula
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Fawn 5K
Runs Michigan's Polly Ann Trail, a converted rail line
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Drew Russell Memorial Run
Honors WMU ROTC's Capt. Drew Russell, killed in action in Afghanistan
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Prove It 10K & 5K
Races on GM's secretive Milford Proving Ground track
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Bad Bunny 5K
Pick your own trail or bike path at River Bends Park
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Wild Strides 5K
Evening 5K through the zoo lit by lanterns
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Wood Memorial Trout Run
Part of Kalkaska's National Trout Festival
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Norway Spring Classic 2026
Michigan's 40-plus-year Norway Spring Classic
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Hurt the Dirt
Fast, flowy singletrack on Michigan's top trails
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Family Service and Children's Aid Annual 5K Run/Walk
A 5K/walk along Jackson's Falling Water Trail
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Pirate 5K, 10K, & 13.1M at Lansing, MI (17)
Pirate-themed 5K, 10K & half marathon in Lansing
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Thumb Coast Ultra & Relay
Point-to-point from Lake Huron to Saginaw Bay shoreline
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Rivertown Races
West Michigans premier spring race for all ability levels
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Kalamazoo Marathon
A memorable spring marathon through Kalamazoo Michigan
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Walleye Races 5K/10K
USATF race on the Freeland Rail Trail
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Save any of these to your season in RunCalendar and hear the morning entries open. Free on iPhone, no account needed.
Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.