Half-Marathon races in Michigan, United States — 2026 running calendar

Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk

Ann Arbor, Michigan, United States

Oct 3, 2026 (Sat) – Oct 4, 2026

Free - $270.00

Running, Walking

0.8K 0.4K Marathon Half-Marathon +13

Sleeping Bear Marathon, Half Marathon & 5K

Empire, Michigan, United States

Oct 3, 2026 (Sat)

$55.00 - $115.00

Running

Marathon Half-Marathon 5K

Haunted 5K, 10K, & 13.1M at Grand Ledge, MI (40)

Grand Ledge, Michigan, United States

Oct 3, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Cedar Springs-Run Michigan Cheap

Cedar Springs, Michigan, United States

Oct 4, 2026 (Sun)

$20.00 - $30.00

Running, Walking

Half-Marathon 10K 5K

Oktoberfest Runs @ Stony Creek

Shelby Township, Michigan, United States

Oct 4, 2026 (Sun)

$50.00 - $120.00

Running

29.9K Half-Marathon 10K 5K

Sandhill Crane All Trail Half Marathon/10K/5K

Vandalia, Michigan, United States

Oct 10, 2026 (Sat)

Free - $25.00

Trail running, Running

Half-Marathon 10K 5K 1K

Lane Walker Foundation Race

Alma, Michigan, United States

Oct 10, 2026 (Sat)

Free - $55.00

Running

5K 10K Half-Marathon +1

Hot Cider Hustle - Lansing Half Marathon, 10K & 5K

Lansing, Michigan, United States

Oct 10, 2026 (Sat)

$12.99 - $99.99

Running

Half-Marathon 10K 5K +8

Spooky Sprint - Grand Rapids

Caledonia, Michigan, United States

Oct 10, 2026 (Sat)

$22.00 - $70.00

Running

1.6K 5K 10K Half-Marathon

Haunted 5K, 10K, & 13.1M at Corunna, MI (42)

Corunna, Michigan, United States

Oct 17, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

University of Michigan Health-West Grand Rapids Marathon

Grand Rapids, Michigan, United States

Oct 18, 2026 (Sun)

$47.50 - $362.50

Running

Marathon Half-Marathon 5K 10K +2

myTEAM TRIUMPH West MI - GR Marathon -- Captain & Angel Registration

Grand Rapids, Michigan, United States

Oct 18, 2026 (Sun)

Free - $25.00

Running

Half-Marathon Marathon