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Half Marathon calendar near Windsor 2025-2026

Explore the top half marathons near Windsor for 2025-2026! We've gathered 10 exciting races in the area. Check out our detailed list below to find your next local race.

April 2025
Apr
13
Sunday

Horsetooth Half Marathon

13 mi
Apr
19
Saturday

Great Western Trail Race

Trail Run 5 km 10 km 13 mi
May 2025
May
4
Sunday

Longmont Half

5 km 13 mi
May
4
Sunday

Colorado Marathon

5 km 10 km 13 mi 26 mi
May
10
Saturday

Carbon Valley Half Marathon

5 km 13 mi
June 2025
Jun
21
Saturday

Red, White and Brew Half Marathon

5 km 10 km 13 mi 12 hr
August 2025
Aug
8-9
Fr - Sa

Choice City Running Festival

5 km 10 km 13 mi
September 2025
Sep
5-6
Fr - Sa

American Heroes Run

Trail Run 5 km 9 mi ... 100 mi 24 hr
Sep
6
Saturday

Black Squirrel Half

Trail Run 13 mi
Sep
14
Sunday

Fall Equinox Marathon

5 mi 13 mi 26 mi
October 2025
Oct
5
Sunday

Windsor Marathon

5 km 10 km 13 mi 26 mi
Oct
11
Saturday

The Long View Marathon

5 km 13 mi 26 mi
Oct
18-19
Sa - Su

Blue Sky Trail Marathon

Trail Run 13 mi 26 mi
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