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Half Marathon calendar near Estes Park 2024-2025

Explore the top half marathons near Estes Park for 2024-2025! We've gathered 11 exciting races in the area. Check out our detailed list below to find your next local race.

April 2025
Apr
12
Saturday

Boulder Rez Half

5 km 10 km 13 mi
Apr
13
Sunday

Horsetooth Half Marathon

13 mi
Apr
26
Saturday

Bigfoot Half Marathon

5 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
August 2025
Aug
1-2
Fr - Sa

Rocky Mountain Half Marathon

5 km 13 mi
Aug
2
Saturday

Boulder Rez Marathon

Trail Run 10 km 21 km 31 km 42 km
Aug
8-9
Fr - Sa

Choice City Running Festival

5 km 10 km 21 km
September 2025
Sep
20-22
Sa - Mo

Red Feather Trail Jamboree

Trail Run 13 mi 50 km 50 mi
Sep
28
Sunday

Run Boulderthon: The Boulder Marathon

5 km 10 km 13 mi 26 mi
October 2025
Oct
11
Saturday

The Long View Marathon

5 km 13 mi 26 mi