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Date:
Sun, Sep 13, 2026 at 8:00 AM – 12:00 PM
Location:
9830 Riverdale Road
Thornton, Colorado
80229
United States
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Links:
rmrr.org Register at runsignup.com
Tags:
10k 5k Gravel Run

Rocky Mountain Road Runners holds a monthly Trophy Series in the Denver area. We provide a low-key, low-cost racing environment. Everyone is welcome to run with us!

The 10km race uses a handicap start system, slow-to-fast, spread over ~30 minutes. This gives everyone a chance to win. We'll use your estimated finish time to assign you a start time with others the same speed.

All 5k racers will start ~15min after the first 10km starters.

Race Day Details

Time: 10k starts at 8:00 am + your handicap.*

5k starts approximately 15min after the first 10k starter.

Show up 30 minutes early to get your tag and warm up.

Location: Riverdale Ballfields, 9830 Riverdale Road, Thornton, Colorado, 80229

Course: Both distances are out-and-back on a mix of paved and smooth gravel.

Parking: Plenty of parking at the park.

  • The Trophy Series races use a unique, handicap start and scoring system. 10k racers start from slow to fast giving everyone a chance to win. When you register and pick up your number, we'll help you choose an appropriate start time that fits your estimated time.

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  • RMRR Spring Marathon Training Series #2 [rmrr.org] [Register at runsignup.com]

    Sat, Apr 11, 2026 at 8:00 AM

    Description

    RMRR provides consistent and individualized marathon training opportunities for runners of all abilities.

    All races in the series are low cost, friendly, fully supported, and officially timed.The...

    RMRR provides consistent and individualized marathon training opportunities for runners of all abilities.

    All races in the series are low cost, friendly, fully supported, and officially timed.The first two races, March 29 & April 11, are 10 Mile and 20 Mile races (runners choice for distance). The third race in the series is the Inaugural Blue Heron half marathon. All you need to do is focus on your running! Our races fit perfectly in training schedules for Boston, London, Colfax, and other spring full and half marathons.

    Everyone is welcome to Marathon Training Series races: RMRR members, guests, training team members, everyone! The course is clearly marked, and mile markers will help you gauge your time. Aid stations will have water, sports drink, and gels. Winners of each distance will receive ribbons and running store gift certificates. We make it easy for you to work on your pace, your nutrition and drinking, and getting everything ready for your big race.

    RMRR members get a 50% discount (automatically taken at registration check out). Race day registration will be available.

    Please note that for everyone's safety dogs or running strollers are not permitted on our courses. Thanks for understanding.

    The races begin at 8 am at the Platte River Trailhead Park in Thornton, at 88th and Colorado.

    2.7 km from Thornton
    Thornton, Colorado, 80229, United States
    OpenStreetMap Google Maps

    10 Miles 20 Miles Marathon Run Trail

  • Dash for Detection: Oral Cancer Awareness 5K [runsignup.com]

    Sat, Apr 11, 2026 at 8:00 AM

    Description

    RACE POSTPONED TO 2027

    We regret to inform you that the 2026 Dash for Detection: Oral Cancer Awareness 5K has been canceled. Due to circumstances beyond our control, we were unable to secure...

    RACE POSTPONED TO 2027

    We regret to inform you that the 2026 Dash for Detection: Oral Cancer Awareness 5K has been canceled. Due to circumstances beyond our control, we were unable to secure the necessary credentialing to move forward with the event this year.

    All registered participants will receive a full refund of their race registration fees within the next few weeks. No further action is needed on your end.

    While this is not the news we hoped to share, please know that our commitment to raising awareness for oral cancer and supporting those currently battling the disease—as well as honoring those we have lost—remains unwavering. We are already exploring alternative options and beginning preparations to ensure the 2027 race is even bigger and better than ever.

    Thank you for your understanding, continued support, and belief in the mission of Dash for Detection.

    Please reach out if you have any questions or concerns,

    All my best,

    Riley Spillar

    riley.spillar@cuanschutz.edu

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    For the patient: https://agdfoundation.org/resources/oral-cancer-toolkit/i-am-a-patient/

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    9.8 km from Thornton
    2001 Colorado Blvd, Denver, Colorado, 80205, United States
    OpenStreetMap Google Maps

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  • RMRR April Trophy Series [rmrr.org] [Register at runsignup.com]

    Sun, Apr 12, 2026 at 9:00 AM

    Description

    April is a lovely time to run with RMRR, and the City Park 4 mile run is a great way to celebrate spring. We usually have fabulous spring weather for this run, and it’s fun to run around the park and...

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    Race Day Details

    Time: 9:00 am for the first starters.

    Check-in: At the Pavilion. Show up at least 30 minutes early to walk from your car, get your tag and warm up.

    Parking: Either in the lot between the zoo and science museum, or S of 17th.

    Course: Two laps on asphalt roads, and a short dirt path, around Denver's City Park.

    9.8 km from Thornton
    2001 Steele Street, Denver, Colorado, 80205, United States
    OpenStreetMap Google Maps

    4 Miles Run Walk

  • DoNot Stop Half Marathon (5k/10k) - Denver [runsignup.com]

    Sun, Apr 19, 2026 at 8:00 AM

    Description

    Question: Is it supposed to be DO NOT STOP, or DONUT STOP? Answer: YES!

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    Question: Is it supposed to be DO NOT STOP, or DONUT STOP? Answer: YES!

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    The fun includes -

    • Great Swag - designer shirt & custom medal

    • Chip-timing with live results and awards

    • Free photos

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    Grab your friends and family, you are not going to want to miss this one!

    Can't make the race? No problem! We offer a virtual race option where you can run anywhere, at any time, and still earn the fun swag!

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    • 5k registration includes a custom bib, designer shirt, and an awesome finisher medal!

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    **Register by midnight on Thursday, two Thursdays before race day, to guarantee your shirt!

    Please note that there is a mandatory $12 parking fee per vehicle, collected by the park. Be prepared to pay this fee upon arrival, unless you have a valid state park pass, in which case the fee is waived.

    8.7 km from Thornton
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    OpenStreetMap Google Maps

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  • Runs With Scissors Races [runswithscissorsraces.weebly.com] [Register at runsignup.com]

    Sat, Apr 25, 2026 at 7:00 AM

    Description

    Saturday, April 25, 2026

    Half Marathon, Marathon and 50K all Start at 7:00 a.m.

    If you want your name included on the finisher's medal ribbon, and to be guaranteed a finisher medal, you must register...

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    If you want your name included on the finisher's medal ribbon, and to be guaranteed a finisher medal, you must register before March 20, 2026.

    If registration for a distance is full, email InTheLongRunLLC@outlook.com for possible registration options.

    The race will be held at Riverdale Regional Park in Brighton Colorado.

    A portion of all race proceeds will be donated to Almost Home, Inc. You can also give an individual donation by clicking on the donate button or adding a donation at checkout.

    The race will be held on a 1.31-mile loop course. The half marathon is 10 laps, the marathon is 20 laps, and the 50k is 24 laps. You're guaranteed a restroom and an aid station every 1.31 miles! There are also two other restrooms along the course.

    Prizes will be awarded to the overall top three male and female in each distance (no duplicates)

    A race specific wicking beanie as well as a custom "scissors shaped" medal will be given to all finishers with the runners' names on the ribbon. You must register before 3/20/26 to be guaranteed a medal and to have your name included on the ribbon.

    A custom 16 oz. pub-style glass will be given to all registered participants.

    New this year: You may opt out of the beanie and/or pint glass for a race discount.

    Packet pick-up will be at Something Brewery, 117 N. Main St., Brighton, CO (on the back patio if the weather is nice, in the back room if it is not) from 4:00 pm until 7:00 pm the night before the race. Race day packet pick up will be at the Riverdale Regional Park pavilion and will include the bib and pint glass; it may not include the swag bag.

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    OpenStreetMap Google Maps

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