Keystone close

Running Calendar near Keystone 2026-2027

Monthly updates for Keystone

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

Explore the top running races near Keystone for 2026-2027! We've gathered 20 exciting races in the area. Check out our detailed list below to find your next local race.

Half Marathons Marathons Trail Runs Triathlons
June 2026
Jun
13
Sa

Winter Park Classics - Double Up Hill Climb

10 km
Jun
19-21
Fr - Su

Leadville Trail 100 Run Camp

Trail Run 13 mi 21 mi 25 mi
Jun
20
Sa

Slacker Half Marathon

4 mi 13 mi
Jun
25-28
Th - Su

Race in the Clouds - Alma Dirt Festival

Trail Run 6 mi 13 mi
Jun
27-28
Sa - Su

Leadville Trail Marathon and Heavy Half

Trail Run 15 mi 26 mi
Jun
28
Su

The Blue Sky Ascent

15 mi
July 2026
Jul
4
Sa

Rendezvous Run for Independence

Trail Run 5 km
Jul
10-11
Fr - Sa

Silverheels Trail Runs

Trail Run 10 mi 19 mi ... 100 km 100 mi
Jul
11-12
Sa - Su

Silver Rush 50

Trail Run 5 km 15 mi 50 mi
Jul
27
Mo

The Summit 200

Trail Run 200 mi
August 2026
Aug
1
Sa

Sheep Mountain Ultras

Trail Run Half Marathon 50 km 50 mi
Aug
1
Sa

Winter Park 50K

Trail Run 10 km 50 km
Aug
8
Sa

Run The Rockies Trail Race

Trail Run 5 km 10 km Half Marathon
Aug
16
Su

Leadville Trail 10K Run

Trail Run 10 km
Aug
22
Sa

Leadville Trail 100 Mile Run

Trail Run 100 mi
Aug
22
Sa

Byers Peak Stampede Half Marathon

Trail Run 5 km 13 mi
September 2026
Sep
5
Sa

Cirque Series - Arapahoe Basin

Trail Run 9 mi
Sep
11-12
Fr - Sa

Flaming Foliage Relay

165 mi
Sep
12
Sa

Devil on the Divide

Trail Run 22 km 50 km
Sep
19
Sa

Run the Rockies Road Half Marathon

6 mi 13 mi