Event details subject to change. Please confirm all information via event website.
Spooky Sprint 5K
Carpenter Park 3498 E 112th Ave, Thornton, CO, United StatesGet ready to lace up your sneakers (or your costume!) for Almost Home’s first-ever Spooky Sprint 5K! Join us on Saturday, October 25, 2025 at Margaret Carpenter Park in Thornton for a morning full of fun, community spirit, and impact. Whether you’re running, walking, or choosing to “sleep in”, every registration helps Almost Home provide […]
YMCA Creepy Crawl 5K
Palmer Lake Regional Park 199 County Line Road, Palmer Lake, CO, United StatesOur 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 […]
Eerie Erie 5K/10K
Erie United Methodist Church 604 Holbrook St, Erie, CO, United StatesThe 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 […]
MonsterDASH
Sloan's Lake Park 1700 Utica Street, Denver, CO, United StatesColorado's Favorite Halloween Runs....Each year the Theme Changes!! 2025 brings...SCARY CLOWNS / Circus Theme! Our best theme yet. Saturday Race is in Denver at 9:30am... then Sunday is in Louisville at 3:00pm on trails. This festival on Sloan's Lake, brings scary music, tons of Blow Ups, Carnival Games and Scary Clowns. The 5k and 10k […]
Halloween Fun Run
Clear Creek Middle School 320 Chicago Creek Rd, Idaho Springs, CO, United StatesThis 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 […]
Boos & Brews Halloween 5K
Number Thirty Eight 3560 Chestnut Place, Denver, CO, United StatesJoin us for The Boos & Brews Halloween 5k @ Number Thirty Eight on October 25, 2025, 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 […]
Canceled Redrum Fun Run
Lincoln Park - Greeley 829 10th Ave, Greeley, CO, United StatesGet ready to lace up your running shoes and unleash your spooky spirit at the Redrum Costume Fun Run 2025! Join hundreds of ghosts, goblins, superheroes, and wacky characters as we dash through the heart of downtown Greeley in a festive 3K that’s more about fun than speed. This family-friendly event welcomes all ages and […]
Quick Draw @ McGraw Trail Race
McGraw Memorial Park 39 Wellington Lake Rd, Bailey, CO, United StatesCome one, come all! And join us in the "Quick Draw @ McGraw" 2 Mile Trail Run, organized and hosted by CRATES Colorado and benefitting McGraw Memorial Park. This challenging trail course located directly south of the Keystone Bridge located inside McGraw Park will give runners of all skill levels a true test of their […]
BOO Run 5K
WestCo Brewing 905 Struthers Ave, Grand Junction, CO, United StatesCostume up and bring your family and friends, we will haunt the town on our 5k route along the river while taking in the beautiful fall colors followed by a big costume contest, seasonal brews, hot chocolate and fun fitness games. Website link: https://grandvalleybrewruns.com/kannah-creek-brewing-company/ FB event page: https://www.facebook.com/events/737334659137680
Spooky Sprint 5K
Pueblo YMCA 3200 E. Spaulding Ave, Pueblo, CO, United StatesThis eerie evening race winds through a chilling course at the YMCA of Pueblo. The thrilling Halloween themed race is perfect for all ages and fitness levels. Recommended for those who want to have a hauntingly good PR. The best part of Spooky Sprint is you get to wear your costume! Whether you’re running as […]
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