Berthoud close

Marathon Calendar near Berthoud 2026-2027

Monthly updates for Berthoud

Get new running races (and updates) in your inbox every month.

Explore the top marathons near Berthoud for 2026-2027! We've gathered 9 exciting races in the area. Check out our detailed list below to find your next local race.

April 2026
Apr
25
Sa

Runs With Scissors Races

Half Marathon Marathon 50 km
May 2026
May
3
Su

Colorado Marathon

5 km 10 km Half Marathon Marathon
May
30-31
Sa - Su

Weld Your Mettle Running Festival

Backyard Ultra 4 mi 14 mi ... 100 km 100 mi
June 2026
Jun
20
Sa

Estes Park Marathon

5 mi Half Marathon Marathon
August 2026
Aug
15
Sa

Boulder Rez Marathon

Trail Run 10 km Half Marathon 31 km Marathon
September 2026
Sep
11-12
Fr - Sa

American Heroes Run

Trail Run 5 km 9 mi ... 100 mi 24 hr
Sep
27
Su

Run Boulderthon: The Boulder Marathon

5 km 10 km Half Marathon Marathon
October 2026
Oct
4
Su

Windsor Marathon

5 km 10 km Half Marathon Marathon
Oct
10
Sa

The Long View Marathon

5 km Half Marathon Marathon