57 Upcoming Half Marathon Races Near Westminster, CO

Most popular races in Colorado →

Sun, Aug 22, 20271 race

Pioneer Prairie Dog Half, 10k & 5k logo

Pioneer Prairie Dog Half, 10k & 5k

Westminster, CO

Half
10K
5K
View details for race Pioneer Prairie Dog Half, 10k & 5k

Mon, Sep 6, 20271 race

Labor Day Half Marathon logo

Labor Day Half Marathon

Parker, CO

Half
10K
5K
Fast
View details for race Labor Day Half Marathon
Never miss a race near youSave races and see the forecast in the free app.Get the app

Sat, Sep 11, 20271 race

Golden Harvest Half Marathon & 5K/10K - Denver logo

Golden Harvest Half Marathon & 5K/10K - Denver

Denver, CO

1 Mile
5K
10K
View details for race Golden Harvest Half Marathon & 5K/10K - Denver

Sat, Sep 18, 20272 races

All-Out Fall Fest logo

All-Out Fall Fest

Westminster, CO

Half
10K
5K
Trail
View details for race All-Out Fall Fest

Organize a race? Add it free — over 100,000 runners use Find The Run every month.

Snow Mountain Ranch logo

Snow Mountain Ranch

Granby, CO

Ultra
Half
10K
Trail
View details for race Snow Mountain Ranch

Sat, Oct 2, 20271 race

Spooky Sprint - Denver logo

Spooky Sprint - Denver

Denver, CO

1 Mile
5K
10K
View details for race Spooky Sprint - Denver

Sun, Oct 10, 20271 race

Westy Half & 5k logo

Westy Half & 5k

Westminster, CO

Half
5K
View details for race Westy Half & 5k
Prev1