Old-school cross-country style courses with creek crossings and bale jumps. Youth races 1k - 4k. All-ages 5k. Individuals and teams.

The Fall Series consists of four trail races in four different city/county parks. The trails range from well-maintained to rocky with tree roots. Each event is a unique challenge at a different distance, getting longer as the series progresses.

Welcome to the annual Greenland Open Space Pack Burro Races presented by Double Rainbow Ranch! Grab your burro and join us for a fun and rewarding day on the majestic Greenland Open Space Trail in beautiful Larkspur, Colorado. RACE RULES Each entrant will pay a fee as determined by the Race Director for each race. […]

Canyonlands 100 Mile, 125K, 50 Mile, Marathon, Half Marathon, and 15K Canyonlands Ultra starts and finishes at the Behind the Rocks Trail, along the border of the Behind the Rocks Wilderness Study Area. Moab's last hidden gem; its tall standing Navajo Sandstone domes and fins can be seen from many places along the course. From […]

Run the original Bear Creek Lake Park trail race - the Beware the Bear Trail Races - on October 17th. This trail race consists of a 14.2K or a 5K. Or do them both with the double! There is also a kids 1K.

The Race to Cure Sarcoma (RTCS) is the premier run/walk series in the United States, focused on raising awareness, providing education, and research funds for sarcoma. Each year, the Sarcoma Foundation of America (SFA) hosts more than (20) RTCS events across the country. We provide a unique space in the sarcoma community where patients, survivors, their friends, […]

Join the Apex Park and Recreation District Foundation for the inaugural Trick or Trot 5K! Runners and walkers of all ages and abilities are all welcome to join us for this Halloween celebration. Dress in your Halloween best for a chance to win prizes for the costume contest. There will be a separate 1-mile Trick […]

A relatively new event to close out the Steamboat Springs Running Series season, bringing people of all ages together to celebrate Halloween in a safe, sober and fun way. The Foundry Treatment Center provides an opportunity for lasting recovery through an integrative body, mind and spirit treatment program. Comfortably located in the majestic Rocky Mountains […]

Save the date for our fun and festive fall race: Run Fur Fun Spooktacular! On Saturday, October 28th, we’ll be taking over SweetWater Brewing Company with a spooky 5k race to benefit the animals. Join us for our human and canine costume contests, race prizes, sponsor booths and, of course, a post-race celebratory beer from […]

Our annual "spooky themed" race starts at the Palmer Lake Regional Recreation Area.  We head down the scenic Santa Fe Trail for a bit then turnaround and finish with a lap around Palmer Lake.  This is sure to be a fun day for everyone!  Our Kids Monster Dash Fun Run is for kids 12 and […]

The world-famous Eerie Erie is a Halloween-themed 5k and 10k race that runs through historic downtown Erie and takes advantage of our beautiful trail system that weaves along the Coal Creek open space areas. The 10k passes by scenic Pleasant Hill Cemetery with panoramic views and where friendly spirits can’t wait to visit this year’s […]

This Halloween, join us for a spooky 5k or 1 mile loop through the Pioneer Cemetery in Idaho Springs!!  Try for a PR or take a leisurely stroll as you trick or treat with the ghouls in the graveyard. DON'T FORGET TO DRESS UP! Our Halloween costume contest gives you even more reason to rock […]

Join us for The Boos & Brews Halloween 5k @ Number Thirty Eight on October 26, 2024, for a 5k-ish, fun run event that starts and ends at this awesome taproom in Denver. Run, walk, jog - whatever goes! Complete the course and celebrate with us and a FREE, local craft brew at the finish […]

5K: Join us for a Halloween-themed 5K!  Yes, that means we want you to run in your best costume!  Runners will start at South Main in Buena Vista.  You should be on the lookout for some spooky scenes along the river.  This run is stroller friendly!  After enjoying a little jaunt around the town trails, […]

Runners of all ages and abilities, families, and dogs are all welcome to join us for this Halloween celebration!  Dress in your Halloween best for a chance to win prizes at the pre-race the costume contest before the race at 5 pm.