10K races in Denver–Boulder, CO

Looking for 10K races near you in Denver–Boulder, CO? There are 70 upcoming 10K races listed here. The next one is Bound for Boston Marathon & Half Marathon - Denver on Sun, Aug 2, 2026 at Northfield High School — see the full list below for dates, venues, and registration links, and browse 10K races in other cities.

All 5K (150) 10K (70) Half Marathon (56) Marathon (7) Trail Run (12)

Sun, Aug 2, 2026 Bound for Boston Marathon & Half Marathon - Denver Northfield High School · Denver, CO · From $45 5K10KHalf MarathonMarathon Road
Sat, Aug 8, 2026 All-Out Runapalooza 14982 W 69th Ave · Arvada, CO · From $35 5K10KHalf Marathon Road
Sat, Aug 8, 2026 Summer Sizzler- Denver Carpenter Park/Thornton Recreation Center Park · From $17 5K10K Road
Sat, Aug 8, 2026 Eat. Run. Adopt. 10K 375 Meadowlark Dr · Berthoud, CO · From $40 10K Road
Sat, Aug 15, 2026 Bagel Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Aug 15, 2026 Run for PB& J 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Aug 22, 2026 Staunton Rocks! Marathon and Half Marathon 12102 S Elk Creek Rd · Pine, CO · From $90 5K10KHalf MarathonMarathon Road
Sat, Aug 22, 2026 2026 True Impact Ministries 5K/10K 6395 S Clarkson St · Centennial, CO · From $39 5K10K Road
Sun, Aug 23, 2026 Pioneer Prairie Dog Half, 10k & 5k 10600 Westminster Blvd · From $25 5K10KHalf Marathon Road
Sat, Aug 29, 2026 Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Aug 29, 2026 Sloth Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Sep 5, 2026 Golden Harvest Half Marathon & 5k/10k - Denver Parking Lot South of The Westin Westminster · From $17 5K10KHalf Marathon Road
Mon, Sep 7, 2026 Labor Day Half Marathon Salisbury Equestrian Park · Parker, CO · From $27 5K10KHalf Marathon Road
Sat, Sep 12, 2026 National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Sep 12, 2026 Run for Mental Health 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sun, Sep 13, 2026 RMRR September 5k/10k 9830 Riverdale Road · Thornton, CO · From $10 5K10K Road
Sat, Sep 19, 2026 All-Out Fall Fest 10170 Church Ranch Way · Westminster, CO · From $35 5K10KHalf Marathon Road
Sat, Sep 19, 2026 14th Annual Superhero Event Family Fun Plex or Anytime/Anywhere Virtually · Greeley, CO · From $20 5K10K Road
Sun, Sep 20, 2026 20th Annual Golden Gallop 701 24th St · Golden, CO · From $25 5K10K Road
Sat, Sep 26, 2026 Oktoberfest Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Sep 26, 2026 Run for Donuts 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Sep 26, 2026 Parker Parks and Recreation So Long to Summer 5K/10K 11920 Motsenbocker Rd · Parker, CO · From $40 5K10K Road
Sat, Oct 3, 2026 HRCA Wildcat Mountain Trail Races 11033 Monarch Blvd · Littleton, CO · From $10 10KTrail Run Trail
Sat, Oct 3, 2026 Spooky Sprint - Denver Chatfield State Park · Littleton, CO · From $20 5K10KHalf Marathon Road
Sat, Oct 3, 2026 Lafayette Music Fest -5K - 10K 400 W South Boulder Rd Suite · Lafayette, CO · From $40 5K10K Road
Sat, Oct 10, 2026 Bagel Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Oct 10, 2026 Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sun, Oct 11, 2026 Your Story Isn't Over 5k/10k/Kids 1-Mile 6301 S University Blvd · Littleton, CO · From $20 5K10K Road
Sun, Oct 25, 2026 Ghosts and Goblins 5K/10K City Park · Denver, CO · From $30 5K10K Road
Sat, Oct 31, 2026 Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Oct 31, 2026 PB&J Fuel Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sun, Nov 1, 2026 Feet for Justice Run 2001 Colorado Blvd · Denver, CO · From $10 5K10K Road
Sun, Nov 1, 2026 All-Out Kooky-Spooky 19500 W 64th Pkwy · Golden, CO · From $35 5K10KHalf Marathon Road
Sat, Nov 7, 2026 Turkey Trails- Denver Chatfield State Park · Littleton, CO · From $17 5K10KHalf MarathonTrail Run Trail
Sat, Nov 7, 2026 City Park Classic (5k/10k & 1 Mile Walk of Hope for Pancreatic Cancer Research) 2001 Steele St · Denver, CO · From $16 5K10K Road
Sat, Nov 14, 2026 Run for Mental Health 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Nov 14, 2026 Veterans Day Freedom Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Nov 14, 2026 Denver Veterans Day Run Denver City Park · From $45 5K10K Road
Sat, Nov 21, 2026 TURKEY TREK (13.1, 10k, 5k & 2k) Ralston Creek Trail @ Long Lake Ranch Park · Arvada, CO · From $26 5K10KHalf Marathon Road
Sat, Nov 21, 2026 Pumpkin Pie 5K/10K City Park · Denver, CO · From $30 5K10K Road
Thu, Nov 26, 2026 Broomfield Turkey Day 5K/10K 13200 Sheridan Blvd · Broomfield, CO · From $17 5K10K Road
Sat, Nov 28, 2026 Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Nov 28, 2026 Thanksgiving Gobble Trot Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Dec 5, 2026 All-Out Fa La La 10170 Church Ranch Way · Westminster, CO · From $35 5K10KHalf Marathon Road
Sat, Dec 5, 2026 Toy Drop 1480 Cascade Ave · Loveland, CO · From $30 5K10K Road
Sun, Dec 6, 2026 Candy Cane Course - Denver Westfield Village Park · Westminster, CO · From $22 5K10K Road
Sat, Dec 12, 2026 Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Dec 12, 2026 Sunrise Marathon 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf MarathonMarathon Road
Sat, Dec 26, 2026 A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Dec 26, 2026 New Year's Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Jan 9, 2027 All-Out Polar Prowl 11200 W 58th Ave · Arvada, CO · From $35 5K10KHalf Marathon Road
Sat, Jan 16, 2027 MLK Jr. Freedom Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Jan 16, 2027 Sunrise Marathon 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf MarathonMarathon Road
Sat, Jan 30, 2027 Coffee Lover Run DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Jan 30, 2027 Run for Donut DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Feb 6, 2027 All-Out Mardi Crawl 14982 W 69th Ave · Arvada, CO · From $35 5K10KHalf Marathon Road
Sat, Feb 13, 2027 Run for Chocolate 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Feb 13, 2027 Valentine's Day Run 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Mar 20, 2027 Sunrise Marathon 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf MarathonMarathon Road
Sun, Mar 21, 2027 All-Out Spring Fever 19500 W 64th Pkwy · Golden, CO · From $35 5K10KHalf Marathon Road
Sat, Apr 10, 2027 Run for Bagels 5K/10K/13.1 DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sat, Apr 24, 2027 All-Out Beat the Heat 10170 Church Ranch Way · Westminster, CO · From $35 5K10KHalf Marathon Road
Sat, Apr 24, 2027 Coffee Lover Run DENVER/AURORA Piney Creek Hollow Park (Course Map will be emailed) · Centennial, CO · From $30 5K10KHalf Marathon Road
Sun, May 2, 2027 Colorado Marathon Poudre Canyon · Fort Collins, CO 5K10KHalf MarathonMarathon Road
Sun, May 9, 2027 Colorado Women's Classic - Westminster 10600 Westminster Blvd · From $35 5K10K Road
Mon, May 31, 2027 BOLDERBoulder Folsom Field · Boulder, CO 10K Road
Sun, Jun 6, 2027 Colorado 13er (Half Marathon/10k/5k) 1200 Dillon Road · Louisville, CO · From $30 5K10KHalf Marathon Road
Sat, Jun 12, 2027 All-Out Summer Breeze 11200 W 58th Ave · Arvada, CO · From $35 5K10KHalf Marathon Road
Sat, Jul 10, 2027 All-Out Dog Days 10170 Church Ranch Way · Westminster, CO · From $35 5K10KHalf Marathon Road
Sat, Jul 17, 2027 Summer Splash Prairie Dog Half, 10k, & 5k 5254 N Meadows Dr · Castle Rock, CO · From $25 5K10KHalf Marathon Road

New to the distance? Read 5K vs. 10K: which to race first, or set your target with the pace chart.

Quick answers

When is the next 10K in Denver–Boulder?

The next 10K in Denver–Boulder, CO is Bound for Boston Marathon & Half Marathon - Denver on Sun, Aug 2, 2026 at Northfield High School.

How many 10K races are coming up near me in Denver–Boulder?

There are currently 70 upcoming 10K races listed in Denver–Boulder, CO, each with a date, venue, and direct registration link.

What's the cheapest 10K in Denver–Boulder?

The lowest listed entry right now is RMRR September 5k/10k at from $10. Registration prices usually rise as race day nears, so early entry is cheapest.