Running Races in Westminster, Colorado
11 upcoming races in Westminster, updated nightly. For radius search from your exact zip, use the Race Finder.
Racing in Westminster: what the calendar looks like
There are 11 upcoming races on the Westminster calendar over the next 12 months, with race dates in 8 of the next 12 months. September is the busiest month, with 2 races. By race count, Westminster ranks 7th among Colorado cities.
Of those, 10 offer a 5K, 8 offer a 10K and 6 offer a Half Marathon. The next half marathon is Golden Harvest Half Marathon & 5k/10k - Denver on September 5. Where fees are published, the median entry in Westminster is $22, below the Colorado median of $30.
Close enough for a race-day drive: Arvada (17 races, 3 miles), Denver (52 races, 12 miles), Aurora (11 races, 19 miles).
Races by month
- Sep 20262 races
- Oct 20262 races
- Dec 20262 races
- Feb 20271 race
- Mar 20271 race
- Apr 20271 race
- May 20271 race
- Jul 20271 race
September 2026
- Sat 9/5Golden Harvest Half Marathon & 5k/10k - DenverWestminster, CO · 1 Mile · 5K · 10K · Half Marathon · from $17 · register ↗
- Sat 9/19All-Out Fall FestWestminster, CO · Half Marathon · 10K · 5K · from $20 · register ↗
October 2026
- Sat 10/3Big Waves Family Superhero 5K run/walkWestminster, CO · 5K · from $45 · register ↗
- Sun 10/11Westy Half & 5kWestminster, CO · Half Marathon · 5K · from $30 · register ↗
December 2026
- Sat 12/5All-Out Fa La LaWestminster, CO · Half Marathon · 10K · 5K · from $20 · register ↗
- Sun 12/6Candy Cane Course - DenverWestminster, CO · 1 Mile · 5K · 10K · 15K · from $22 · register ↗
February 2027
- Sat 2/6Westy Winter Waggle 5&10kWestminster, CO · 5K · 10K · from $35 · register ↗
March 2027
- Sat 3/13Erin Go Bragh 7.77kWestminster, CO · 7.77K · from $33 · register ↗
April 2027
- Sat 4/24All-Out Beat the HeatWestminster, CO · Half Marathon · 10K · 5K · from $20 · register ↗
May 2027
- Sun 5/9Colorado Women's Classic - WestminsterWestminster, CO · 5K · 10K · 10 Mile · from $35 · register ↗
July 2027
- Sat 7/10All-Out Dog DaysWestminster, CO · Half Marathon · 10K · 5K · from $20 · register ↗
Where to stay in Westminster
Race-weekend hotel search, dates prefilled for check-in the night before.
- Sep 5Golden Harvest Half Marathon & 5k/10k - DenverFind hotels for this race weekend
- Sep 19All-Out Fall FestFind hotels for this race weekend
- Oct 11Westy Half & 5kFind hotels for this race weekend
Hotel links are affiliate links. Booking through them costs you nothing extra and helps keep RunRace USA free.
Planning a race
- Getting inlotteries, qualifiers, and how entry works for the races that sell out
- Lottery watchwhich race lotteries and registration windows are open right now
- Choosing a first marathona practical guide to picking a debut race