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  • Distance: 20.4 km from Longmont
    Fri, Jul 24, 2026 at 5:30 PM

    Join us for the 3rd annual Flyin' Ryan Memorial 5k , a heartfelt event dedicated to honoring the memory of Ryan Vomacka, an exceptional athlete and individual who left an indelible mark on our community. Ryan, a Mountain View High School graduate, was an integral part of the Cross Country and Track teams, helping lead the Mountain View Boys to victory in the 2016 State Track Championship. Ryan's courage, determination, and spirit, especially in his battle with brain cancer, continue to inspire all who knew him. This race is more than just a competition; it's a celebration of Ryan's life and legacy. By participating, you are supporting the Track and Cross Country programs at Mountain View High School, and we have establish a scholarship fund in Ryan's honor, awarded annually to a deserving athlete from the program .We hope to make this race an annual tradition, fostering community spirit and support for our young athletes. Come run, walk, or cheer and be part of a day that embodies the

    perseverance and passion Ryan showed throughout his life. The location will be at Fairgrounds Park in Loveland .

    See full details
    3.1 Miles5kRunWalk via RunSignup
  • 3771 Monarch Street, Frederick, Colorado, 80516, United States
    OpenStreetMap Google Maps
    Distance: 16.2 km from Longmont
    Sat, Jul 25, 2026 at 11:00 AM

    Get ready for a functional fitness challenge built for all abilities.

    Cerox is back! This time you can choose between Cerox or Cerox Iron.

    You’ll take on 8 fitness zones designed to test your endurance, strength, and grit. Choose your level of challenge:

    Cerox: The event will feature 8 fitness zones plus running.

    Cerox Iron: The same zones as the classic Cerox event, but without the running.

    You can sign up as an individual or with a partner team. Teams can divide the zone work however they choose.

    Estimated Wave Time:

    11 AM: Cerox Individual

    12 PM: Iron Individual

    1 PM: Cerox Teams

    2 PM: Iron Teams

    Get your tickets now and be part of the action on February 28th!

    Cerox Workout:

    400M Run

    Zone 1: 400M Row Erg

    400M Run

    Zone 2: 30 Deadlifts - 155/105

    400M Run

    Zone 3: 400M Ski Erg

    400M Run

    Zone 4: 20 Sandbag Over 4' Bar - 100/70

    400M Run

    Zone 5: 75M Walking Lunges - RAM 55/33

    400M Run

    Zone 6: 200M Farmers Carry - 2x 60's/ 40's

    400M Run

    Zone 7: 30 Cal. Echo Bike

    400M Run

    Zone 8: 30 Burpees to Plate

    Cerox Iron Workout:

    Zone 1: 400M Row Erg

    Zone 2: 30 Deadlifts - 155/105

    Zone 3: 400M Ski Erg

    Zone 4: 20 Sandbag Over 4' Bar - 100/70

    Zone 5: 75M Walking Lunges - RAM 55/33

    Zone 6: 200M Farmers Carry - 2x 60's/ 40's

    Zone 7: 30 Cal. Echo Bike

    Zone 8: 30 Burpees to Plate

    See full details
    RunWalk via RunSignup
  • Distance: 2.9 km from Longmont
    Sat, Aug 08, 2026 at 8:00 AM

    Come join us for a race around the entirety of beautiful Lake McIntosh! This 3.5 mile race is a half paved/half dirt course surrounded by wonderful mountain views, vast farmlands, and beautiful aquatic wildlife! Gather at Dawson Neighborhood park near the pirate ship playground where you will find an assortment of vendors, music, games, and fun! All are welcome to participate in this awesome event! Doggos are encouraged to participate!

    ! NEW ADDITION ! We are so excited to announce the Kids Dash! Please bring your kiddos to enjoy a mad dash to the finish line near the Pirate Ship Playground at Dawson Park!

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    1k3.5 MilesRun via RunSignup
  • Distance: 11.7 km from Longmont
    Sat, Aug 08, 2026 at 9:30 AM

    Eat. Run. Adopt.

    Join us for Berthoud’s first-ever community-driven 10k!

    In partnership with Berthoud Pet Supply, this isn’t just a race—it’s a moving feast with a mission. A portion of race registration proceeds will go to Scroungy Dogs and Pretty Pups Rescue This community race and expo is designed to support Scroungy Dogs and Pretty Pups Rescue, a local 501(c)(3) non-profit dedicated to rescuing and rehoming dogs and cats throughout Northern Colorado.

    Inspired by the spirit of the famous Taco Bell 50k, we are hitting the pavement to celebrate the heart of our town: our local cuisine, and small businesses. Runners will run around town stopping at set up food aid stations with a sample of the local restaurants food. They will wear a wristband that will be hole punched to show they completed eating their samples. They can collect all samples and eat them at the finish but need to hole bunch their wristband to confirm they made the stops.

    Prizes for the overall winner are BOLDERBoulder 2027 entrance + cash prize. Runners up in men, women, kids, seniors get a gift basket with local items from local businesses.

    See full details
    6.2 Miles10kRun via RunSignup
  • Distance: 18.4 km from Longmont
    Sun, Aug 16, 2026 at 7:00 AM

    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, we'll be there with you to celebrate at the finish line! This is one of the few 5k events where FINISHER MEDALS are awarded to each participant. Go home with proof of your pride and show off that bling!

    See full details
    5k13.1 MilesRun via RunSignup
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