10K races near Westminster, Colorado — 2026 running calendar

All-Out Dog Days

Westminster, Colorado, United States

11 Jul, 2026 (Sat)

$35.00 - $80.00

Running

Half-Marathon 10K 5K +2

Pioneer Prairie Dog Half, 10k & 5k

Westminster, Colorado, United States

23 Aug, 2026 (Sun)

$40.00 - $80.00

Running

Half-Marathon 10K 5K

All-Out Fall Fest

Westminster, Colorado, United States

19 Sep, 2026 (Sat)

$25.00 - $70.00

Running

Half-Marathon 10K 5K +2

All-Out Fa La La

Westminster, Colorado, United States

05 Dec, 2026 (Sat)

$20.00 - $65.00

Running

Half-Marathon 10K 5K +2

Candy Cane Course - Denver

Westminster, Colorado, United States

06 Dec, 2026 (Sun)

$27.00 - $32.00

Running

1.6K 5K 10K 15K

All-Out Beat the Heat

Westminster, Colorado, United States

24 Apr, 2027 (Sat)

$20.00 - $65.00

Running

Half-Marathon 10K 5K +2

Colorado Women's Classic - Westminster

Westminster, Colorado, United States

10 May, 2026 (Sun)

Running

5K 10K 16.1K