174 Upcoming Races Near Thornton, CO

Sat, Dec 54 races

All-Out Fa La La

Westminster, CO

Half, 10K, 5K

Candy Cane Course - Denver

Denver, CO

1 Mile, 5K, 10K

Sawmill Trail Runs

Pine, CO

Sun, Dec 64 races

Rudolph Ramble 5K Run/Walk

Denver, CO

5K

RMRR December 4.5mi

Denver, CO

Candy Cane Course - Denver

Westminster, CO

1 Mile, 5K, 10K

RunDenver Series 2026-27

Denver, CO

Half, 5K, 10K

Sat, Dec 125 races

Sleigh Bell Shuffle

Loveland, CO

Santa Catch 5k & 10k

Windsor, CO

5K, 10K, 1 Mile

Superior Stocking Run

Superior, CO

5K

Santa Shuffle 5K

Littleton, CO

5K

WinterFest 5k & Fun Run

Thornton, CO

5K

Sun, Dec 131 race

2026 Jingle Bell Run - Colorado

Denver, CO

5K, 1 Mile

Sat, Dec 193 races

Santa's Dash for Ca$h

Denver, CO

5K

Colorado Tap House Jingle Bell Run

Arvada, CO

1 Mile

Sweaty Sweater 5k

Fort Collins, CO

5K, 1 Mile

Sun, Dec 201 race

Ugly Sweater 5K

Denver, CO

5K

Thu, Dec 311 race

Resolution Run - Fort Collins

Fort Collins, CO

5K

Fri, Jan 1, 20271 race

Resolute Runner 5k

Arvada, CO

5K

Sun, Jan 3, 20271 race

RunningU/Horsetooth Half Marathon Training Presented by Bachus & Schanker

Fort Collins, CO

Sat, Jan 9, 20272 races

All-Out Polar Prowl

Arvada, CO

Half, 10K, 5K

Sentinel Flurry

Golden, CO

1 Mile, 5K

Sun, Jan 17, 20272 races

Polar Bear 5K

Denver, CO

Colorado Cold Snap

Louisville, CO

5K, 10K

Sun, Jan 24, 20273 races

Freakin Freezin 5K - Denver

Denver, CO

5K

Yeti Chase 5k/10k

Morrison, CO

5K, 10K

Redrum Run

Estes Park, CO

Sat, Jan 30, 20274 races

Run for Donut DENVER/AURORA

Centennial, CO

5K, 10K, Half

Coffee Lover Run DENVER/AURORA

Aurora, CO

Half, 5K, 10K

Time Travel Half-Marathon/5K/10K VIRTUAL EVENT ONLY - Denver

Denver, CO

Coffee Lovers Run DENVER/AURORA

Centennial, CO

5K, 10K, Half

Sat, Feb 6, 20273 races

All-Out Mardi Crawl

Arvada, CO

Half, 10K, 5K

Running Up for Air - Staunton Rocks

Pine, CO

Westy Winter Waggle 5&10k

Westminster, CO

5K, 10K

Sun, Feb 7, 20272 races

Super Bowl 5K

Denver, CO

Old Man Winter Bike Rally & Run

Lyons, CO

Ultra, 5K, 10K

Sat, Feb 13, 20271 race

Heart Throb 5k

Arvada, CO

5K

Sun, Feb 14, 20271 race

Ralston Creek Half Marathon & 5k

Arvada, CO

Half, 5K

Sat, Feb 27, 20272 races

Run Together Against Breast Cancer DENVER/AURORA

Centennial, CO

5K, 10K, Half

Run For Mental Health DENVER/AURORA

Centennial, CO

5K, 10K, Half

Sun, Feb 28, 20271 race

Highlands Ranch 5k

Highlands Ranch, CO

5K

Sat, Mar 6, 20272 races

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

Denver, CO

1 Mile, 5K, 10K

Sharin' O' The Green 5k

Fort Collins, CO

5K

Sun, Mar 7, 20271 race

That Dam Run 13.1, 10K, 5K

Arapahoe County, CO

5K, 10K

Sat, Mar 13, 20271 race

Erin Go Bragh 7.77k

Westminster, CO

Sun, Mar 14, 20271 race

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

Severance, CO

5K, 10K, 15K

Sun, Mar 21, 20272 races

All-Out Spring Fever

Golden, CO

Half, 10K, 5K

Central Park 5k

Denver, CO

5K

Sat, Mar 27, 20271 race

SuperHeroes Run DENVER/AURORA

Centennial, CO

5K, 10K, Half