Running Race Calendar in Colorado, United States

May

15

Vallecito Lake Heavy Half

Bayfield, Colorado, United States

$75.00

Running

22.5K

Jun

05

Weld Your Mettle Running Festival

Eaton, Colorado, United States

$35.00 - $210.00

Trail running Running

Ultra 6.9K 22.5K Marathon +9

Jun

06

Colorado 13er (Half Marathon/10k/5k)

Louisville, Colorado, United States

$35.00 - $65.00

Running

Half-Marathon 10K 5K

Jun

06

The Steamboat Marathon

Steamboat Springs, Colorado, United States

$70.00 - $125.00

Running

Marathon Half-Marathon 10K

Jun

06

Flamingo Day 5K

Denver, Colorado, United States

$30.00

Running

5K

Jun

11

M1Le Nation Challenge

Fort Collins, Colorado, United States

$10.00 - $45.00

Running

1.6K Kids ½ Mile

Jun

12

Alpha 5K Challenge

Boulder, Colorado, United States

Running

5K

Jun

12

All-Out Summer Breeze

Arvada, Colorado, United States

$20.00 - $65.00

Running

Half-Marathon 10K 5K +2

Jun

19

Red, White and Brew 5k, 10k & Half Marathon

Windsor, Colorado, United States

$18.00 - $68.00

Running

5K 10K Half-Marathon 1.6K +2

Jun

19

Unicorn 5k (North)

Thornton, Colorado, United States

$18.00 - $41.00

Running

5K 1K

Jun

19

Treat Trot - Denver

Denver, Colorado, United States

$17.00 - $42.00

Running

Kids Dash 1.6K 5K 10K +3

Jun

20

Treat Trot Colorado Springs

Colorado Springs, Colorado, United States

$17.00 - $42.00

Running

Kids Dash 1.6K 5K 10K +3