Michigan Half Marathon Calendar 2025-2026

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Explore the best half marathons in Michigan for 2025-2026! Our updated list features 82 exciting races across the region. Find your next race in Michigan below and join the running community at these great events!

September 2025
Sep
27-28
Sa - Su

Sault International Festival of Races

5 km 5 mi 13 mi
Sep
27
Saturday

Park2Park Half-Marathon

5 km 13 mi
Sep
28
Sunday

Heritage 50K Trail Run

Trail Run 13 mi 50 km
Sep
28
Sunday

Ann Arbor Marathon

5 km 10 km 13 mi 26 mi
Sep
28
Sunday

She Runs Grand Rapids

5 km 10 km 13 mi
October 2025
Oct
4
Saturday

Sleeping Bear Marathon

5 km 13 mi 26 mi
Oct
5
Sunday

Oktoberfest Runs @ Stony Creek

5 km 10 km 13 mi 30 km
Oct
12
Sunday

13 Ghosts Half Marathon

Trail Run 4 mi 13 km 13 mi
Oct
17-19
Fr - Su

Detroit Free Press Marathon

5 km 13 mi 26 mi
Oct
18
Saturday

Spooky Sprint

5 km 10 km 13 mi
Oct
19
Sunday

Grand Rapids Marathon

5 km 10 km 13 mi 26 mi
Oct
25
Saturday

Spooky Sprint - Ann Arbor

5 km 10 km 13 mi
Oct
25
Saturday

The Legend Trail Run

Trail Run 5 mi 10 mi 13 mi
Oct
25
Saturday

Michigan Monster Dash

5 km 10 km 13 mi
Oct
25
Saturday

Half Marathon at McCurdy Park

5 km 10 km 15 km 13 mi
Oct
25
Saturday

Great Turtle Trail Run

Trail Run 5 mi 13 mi
Oct
26
Sunday

Spooky Sprint - Grand Rapids

5 km 10 km 13 mi
November 2025
Nov
2
Sunday

The Rock CF Thumb Coast Marathon

5 km 13 mi 26 mi
Nov
15
Saturday

Half Marathon at McCurdy Park

5 km 10 km 15 km 13 mi
Nov
28
Friday

Black Toenail Friday Half Marathon

Trail Run 7 mi 13 mi
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