Trail running Race Calendar in Colorado, United States
76 events found
May
09
Quad Rock 25 & 50 Mile Trail Races
Bellvue, Colorado, United States
Trail running
Ultra
40.2K
May
09
The Great CO74 Trail Run
Kittredge, Colorado, United States
Trail running
11.9K
May
09
Valkyrie Trail Race
Colorado Springs, Colorado, United States
Trail running
49.6K
Marathon
28K
Half-Marathon
+2
May
02
Take 5 in the Garden
Colorado Springs, Colorado, United States
Trail running
Running
15.3K
8K
5K
Quad Rock 25 & 50 Mile Trail Races
Bellvue, Colorado, United States
May 9, 2026 (Sat)
Trail running
Ultra
40.2K
The Great CO74 Trail Run
Kittredge, Colorado, United States
May 9, 2026 (Sat)
Trail running
11.9K
Valkyrie Trail Race
Colorado Springs, Colorado, United States
May 9, 2026 (Sat)
Trail running
49.6K
Marathon
28K
Half-Marathon
+2
Take 5 in the Garden
Colorado Springs, Colorado, United States
May 2, 2026 (Sat)
Trail running, Running
15.3K
8K
5K