54 Upcoming Half Marathon Races Near Lyons, CO

Sun, Nov 11 race

All-Out Kooky-Spooky

Golden, CO

Sat, Nov 71 race

Turkey Trails- Denver

Littleton, CO

Sat, Nov 141 race

Salute to Veterans 5K/10K/Half Marathon - Denver

Aurora, CO

Sat, Nov 211 race

TURKEY TREK (13.1, 10k, 5k & 2k)

Arvada, CO

Sat, Dec 51 race

All-Out Fa La La

Westminster, CO

Sun, Dec 61 race

RunDenver Series 2026-27

Denver, CO

Sat, Jan 9, 20271 race

All-Out Polar Prowl

Arvada, CO

Sat, Jan 30, 20273 races

Run for Donut DENVER/AURORA

Centennial, CO

Coffee Lover Run DENVER/AURORA

Aurora, CO

Coffee Lovers Run DENVER/AURORA

Centennial, CO

Sat, Feb 6, 20271 race

All-Out Mardi Crawl

Arvada, CO

Sun, Feb 7, 20271 race

Old Man Winter Bike Rally & Run

Lyons, CO

Sun, Feb 14, 20271 race

Ralston Creek Half Marathon & 5k

Arvada, CO

Sat, Feb 27, 20272 races

Run Together Against Breast Cancer DENVER/AURORA

Centennial, CO

Run For Mental Health DENVER/AURORA

Centennial, CO

Sat, Mar 6, 20271 race

Time to Paddy 5K/10K & Lucky 13.1 13.1 - Denver

Denver, CO

Sun, Mar 14, 20271 race

Lucky Brew Race 5K, 10K, 15k & Half Marathon

Severance, CO

Sun, Mar 21, 20272 races

All-Out Spring Fever

Golden, CO

Spring Equinox

Wellington, CO

Sat, Mar 27, 20273 races

Always Hope Easter Run DENVER/AURORA

Centennial, CO

SuperHeroes Run DENVER/AURORA

Centennial, CO

Always Hope Easter Run DENVER/AURORA

Aurora, CO

Sun, Apr 4, 20271 race

Three Creeks Half Marathon

Englewood, CO

Sat, Apr 10, 20271 race

Run for PB&J 5k/10k/13.1 DENVER/AURORA

Centennial, CO

Sun, Apr 11, 20272 races

Spring Fling Prairie Dog Half, 10k, & 5k

Arvada, CO

Platte River Half-Marathon, Relay & 5k

Littleton, CO

Sun, Apr 18, 20271 race

Horsetooth Half Marathon - Presented by Fort Collins Connexion

Fort Collins, CO

Sat, Apr 24, 20275 races

All-Out Beat the Heat

Westminster, CO

Coffee Lover Run DENVER/AURORA

Aurora, CO

Coffee Lovers Run DENVER/AURORA

Centennial, CO

Run for Donut DENVER/AURORA

Centennial, CO

Bigfoot Half Marathon

Estes Park, CO

Sun, Apr 25, 20271 race

DoNot Stop Half Marathon/5K/10K - Denver

Denver, CO

Sun, May 2, 20272 races

Longmont Half & 5k (LM Half)

Longmont, CO

The Colorado Marathon

Fort Collins, CO

Sat, May 8, 20271 race

Run for Chocolate 5k/10k/13.1 DENVER/AURORA

Centennial, CO

Sun, May 9, 20271 race

Hometown Half Marathon/5K/10K - Denver

Denver, CO

Sun, May 16, 20271 race

2027 Colfax Marathon

Denver, CO

Sat, May 29, 20271 race

SuperHeroes Run DENVER/AURORA

Centennial, CO

Sun, Jun 6, 20271 race

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

Louisville, CO

Sat, Jun 12, 20271 race

All-Out Summer Breeze

Arvada, CO

Sat, Jun 19, 20271 race

Estes Park Marathon & Half Marathon 2027

Estes Park, CO

Sat, Jun 26, 20271 race

Sat, Jul 10, 20271 race

All-Out Dog Days

Westminster, CO

Sat, Jul 17, 20271 race

Heatwave Half Marathon/5K/10K - Denver

Denver, CO

Sun, Aug 1, 20271 race

Bound for Boston Marathon & Half Marathon - Denver

Denver, CO

Sat, Aug 7, 20271 race

All-Out Runapalooza

Arvada, CO

Sun, Aug 15, 20271 race

Erie Half & 5k

Erie, CO

Sat, Aug 21, 20271 race

Byers Peak Stampede Half Marathon & 5K Run

Fraser, CO

Sun, Aug 22, 20271 race

Pioneer Prairie Dog Half, 10k & 5k

Westminster, CO