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19 marathons found for "Michigan", Ultra marathon, United States. Keep the list broad first, then tighten the filters when a race looks realistic.





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Big Rapids, Michigan, United States
26SEP
ULTRA
The Hungerford Trail Races
Big Rapids, Michigan, United States
September 26, 2026 SEP
Michigan, United States
27SEP
ULTRA
Probility Ann Arbor Marathon
Michigan, United States
September 27, 2026 SEP
Michigan, United States
03OCT
ULTRA
North Shore Run
Michigan, United States
October 3, 2026 OCT
Gwinn, Michigan, United States
10OCT
ULTRA
Anderson Lake Backyard Ultra
Gwinn, Michigan, United States
October 10, 2026 OCT
West Olive, Michigan, United States
10OCT
ULTRA
The Ultra Bird 12hr and 6hr Trail Races
West Olive, Michigan, United States
October 10, 2026 OCT
Michigan, United States
17OCT
ULTRA
Detroit Marathon
Michigan, United States
October 17, 2026 OCT
Michigan, United States
17OCT
ULTRA
Spooky Sprint- Lansing
Michigan, United States
October 17, 2026 OCT
Michigan, United States
18OCT
ULTRA
Lakeshore Long Run
Michigan, United States
October 18, 2026 OCT
Michigan, United States
25OCT
ULTRA
Spooky Sprint - Grand Rapids
Michigan, United States
October 25, 2026 OCT
Houghton, Michigan, United States
07NOV
ULTRA
Keweenaw Ultramarathon
Houghton, Michigan, United States
November 7, 2026 NOV
Shelby Township, Michigan, United States
26NOV
ULTRA
Turkey Trail Trot & the Leftovers Race
Shelby Township, Michigan, United States
November 26, 2026 NOV
Michigan, United States
30NOV
ULTRA
Jackson County 50-50
Michigan, United States
November 30, 2026 NOV
Holly, Michigan, United States
16JAN
ULTRA
8 Hours of Ode | Ode in the Snow
Holly, Michigan, United States
January 16, 2027 JAN
Walker, Michigan, United States
05FEB
ULTRA
Groundhog Day Marathon
Walker, Michigan, United States
February 5, 2027 FEB
Brighton, Michigan, United States
13FEB
ULTRA
Winter Trail Fest Half Marathon and 5 Mile - Eastside
Brighton, Michigan, United States
February 13, 2027 FEB
Middleville, Michigan, United States
20FEB
ULTRA
Winter Trail Fest (WTF) Half Marathon and 5 Mile - Westside
Middleville, Michigan, United States
February 20, 2027 FEB
Michigan, United States
02MAY
ULTRA
Saranac-Run Michigan Cheap
Michigan, United States
May 2, 2027 MAY
Michigan, United States
02MAY
ULTRA
Zeigler Kalamazoo Marathon
Michigan, United States
May 2, 2027 MAY
Traverse City, Michigan, United States
08MAY
ULTRA
Traverse City Trail Running Festival
Traverse City, Michigan, United States
May 8, 2027 MAY

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