Half Marathons in Michigan in October
12 half marathons in Michigan are on the calendar for October 2026, in Corunna, Thompsonville, Detroit, Grand Rapids and more. Tap a race for the course, weather, past results and how to register.
Haunted 5K, 10K, & 13.1M at Corunna, MI (42) · Corunna, Michigan
Peak2Peak Mountain Bike Classic · Thompsonville, Michigan
Detroit Free Press Marathon · Detroit, Michigan
myTEAM TRIUMPH West MI - GR Marathon -- Captain & Angel Registration · Grand Rapids, Michigan
University of Michigan Health-West Grand Rapids Marathon · Grand Rapids, Michigan
Haunted 5K, 10K, 13.1M & 26.2M at Lansing, MI (43) · Lansing, Michigan
Mackinac Island Great Turtle Half Marathon & 5.7 Mile · Mackinac Island, Michigan
Michigan Monster Dash · Milford, Michigan
Spooky Sprint - Ann Arbor · Ypsilanti, Michigan
Spooky Sprint- Lansing · Lansing, Michigan
Hot Cider Hustle - Grand Rapids Half Marathon, 10K & 5K · Walker, Michigan
Redeem Mi Run · Montague, Michigan