Buffalo Run 5K

Grand Lake Center 301 Marina Dr, Grand Lake, CO, United States

Held during Grand Lake's iconic Buffalo Days weekend, the Buffalo Run 5k route passes through the charming town of Grand Lake, along the scenic shores of Colorado's highest and deepest natural lake, and past historic landmarks for one of the most unique races you'll ever experience! The race starts and ends at the Grand Lake […]

New Image 5K

New Image Brewing Company - Wheat Ridge 9505 West 44th Ave, Wheat Ridge, CO, United States

Join us for the New Image Brewing 5k on August 17, 2024, for a 5k-ish, fun run event that starts and ends at this awesome taproom in Wheat Ridge. Run, walk, jog - whatever goes! Complete the course and celebrate with us and a FREE, local craft brew at the finish line. Start windows will […]

Erie Half

Reliance Park 900 Weld County Road 1.5, Erie, CO, United States

Join us for the Erie Half and 5k! The Hometown Race Series features half marathons and 5k distance events in outlying communities outside the Denver and Boulder metro areas. LOOK UP! At the Erie event, we often see the early morning skies with dotted with delightfully colorful hot-air balloons. Whatever distance you're ready to tackle, […]

Dash for Democracy 5K

Cheesman Park 1601 Race St., Denver, CO, United States

Join us for the 2nd annual Dash for Democracy! Meet the Denver Democrats, candidates and elected officials and join us for a run (or walk) and food. Registration begins at 8 am and the run begins at 9. There will be two race options, a 5k and a 1k. Pick whichever suits you and then […]

Outdoor Divas Triathlon

Union Reservoir 461 County Road 26, Longmont, CO, United States

The Outdoor Divas Sprint Triathlon on August 21st, annually awarded best women's event in Colorado by Competitor Magazine, is the all women's triathlon you've been waiting for!  We intentionally keep the race cap low at 600 women to create a fun, festive, yet intimate racing environment.  Great goodie bags, one of our biggest expos of […]

Race for Research 5K

Washington Park - Denver 701 S Franklin St, Denver, CO, United States

The Annual Cancer League of Colorado Race for Research 5K is excited to be back to the full event you love at Washington Park in Denver! The Race for Research raises money for the Cancer League of Colorado, a non-profit charitable organization that is run entirely by volunteers with no paid staff or offices. The […]

Eye Love Logan and Zoe 5K

Westminster Promenade 10600 Westminster Blvd, Westminster, CO, United States

Welcome back to the Eye Love Logan and Zoe 5k.  We are so thankful for all the years of support for this cause.  We have watched our kids slowly lose their sight over the years and are, for the first time, hopeful that a clinical trial focusing on this rare gene mutation will be starting […]

Into the Hills Eltuck 5K

Lory State Park 708 Lodgepole Dr, Bellvue, CO, United States

Join us each Tuesday evening in August for a fun series of shorter midweek trail races. Our goal is to offer a fun, low-key series of races designed to give newer trail runners an opportunity to dip their toes into the trail racing waters, and to offer more experienced trail racers a chance to sharpen […]

$25 – $80

Ute 100

Masons Draw Campground Forest Rd 4821, Moab, UT, United States

The Ute 100 is the highest and most scenic race in Utah, taking runners on a breathtaking tour of the La Sal Mountains, Utah's second highest mountain range. The 100 mile course has an average elevation over 8,700 ft and boasts roughly 23,000 ft gain.

Continental Divide Trail Run

Steamboat Springs Ski Resort 2305 Mt Werner Cir, Steamboat Springs, CO, United States

Distances: 50k (9 hour cutoff) and 16 mile (7 hour cutoff) and 5 mile (New!)

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