Rumble at the Ranch

6 Hour MTB Relay for

Teams of 2

Teams of 3

&

Solo Riders

Race Date: Late August, 2026

Highlands Ranch, Colorado

NEW WEBSITE IN PROGRESS

Rumble at the Ranch is a 6 hour mountain bike relay for teams of two or three riders as well as solo racers.  The race takes place on the amazing Highlands Ranch Backcountry singletrack and double-track trail system.  Teams will see how many laps of the 7.6 mile loop they can complete in 6 hours.

The 2025 event was a fantastic success, and we anticipate selling out in 2026. Registration will open in early 2026.

  • Saturday

    3:00 - 5:00pm Early packet pickup at Campus Cycles located at 2102 S Washington St, Denver, CO 80210.

    Sunday

    5:00am: Camp Move-In Opens

    5:30am: Packet Pickup Opens

    5:45am: Course Pre-Ride Opens

    7:10am: Pre-Race Briefing

    7:30am: Wave-1 Start 

    7:35am: Wave-2 Start

    7:40am: Wave-3 Start

    1:30-1:40pm: Finish Line Cutoffs

    2:00pm: Awards Presentation

  • Solo Categories:

    Solo Open (39 & Under): Awards to top-3 male & female

    Solo Single Speed: Awards to top-3 male & female

    Solo 40-49: Awards to top-3 male & female

    Solo 50-59: Awards to top-3 male & female

    Solo 60+: Awards to top-3 male & female

    Duo Categories:

    Duo Juniors: Awards to top-3 Male, Female, and Coed Teams

    Duo Open: (combined ages <100): Awards to top-3 Male, Female, and Coed Teams

    Duo Masters (100+ combined ages): Awards to top-3 Male, Female, and Coed Teams

    Trio Categories:

    Trio Juniors: Awards to top-3 Male, Female, and Coed Teams

    Trio: (combined ages <150) Awards to top-3 Male, Female, and Coed Teams

    Trio Masters (150+ combined ages): Awards to top-3 Male, Female, and Coed Teams

     

  • * Scoring: The race will start in three waves (wave assignments TBD based on entries).  Teams and solo riders will have 6 hours from their wave start to record as many full laps as they can in 6 hours.  All laps finished after the 6 hour mark from a team's start wave will not count toward the team total.  Teams and solo riders must start in the wave that they were assigned.  Starting in the wrong wave will result in a 1 hour penalty (no laps after 5 hours will count).  Finish order will be determined by the number of completed laps, then by finish time.

    * Race Numbers: Numbers must be clearly visible from the front at all times.  They must be attached to the handlebars, facing forward, and attached at the top & bottom to keep the number plate from flipping up.  Numbers cannot be folded, bent, or wrapped around any part of the bike.  Riders must use the number plate assigned to that rider so laps can be credited accordingly.  A timing chip will be affixed to the back of each race number.

    * Riders on Course: Pre-riding the course on race morning must be completed by 7:15am.  Only one rider per team is allowed to be on the course at any time during the race.  Warmups must be done in the parking lot or bike paths outside the venue once the race has begun. 

    * Passing on the Course: The course is 65 percent single track and 35 percent double track.  The double track is split into three sections, and provides for easy passing.  The single track sections of the course will require communication via a bell and/or voice by the faster rider.  Slower riders being overtaken by a faster rider must yield at the first available option by either moving to the side in a wider spot or stepping to the side of the trail to let the faster rider pass.    

    Exchange Zone: The exchange zone will be enclosed within a fenced area.  There is a timing point at the lap start and another timing point at the finish end of the exchange zone.  After the start of the race, official lap times begin and end at the finish of the lap (time in the exchange zone is included in the laps). The mat at the start arch is only used for tracking riders on the course.

    Riders must dismount their bikes at the finish timing mat and run/walk while in the exchange zone.  Duos and Trios must make their exchange within the fenced exchange area only by exchanging a small baton item provided by race organizers which fits easily in a bike jersey pocket.  Team riders may not enter the course without taking the baton from the previous rider in the exchange zone.  There will be a bike mount sign at the lap start timing mat.  

    There will be a coned bypass lane on the south edge (rider's right) of the fenced exchange zone for solo or team riders who are continuing onto another lap without exchanging riders or seeking assistance.  These riders may stay on their bikes (at a speed no faster than 7mph) between the lap finish timing point and lap start timing point.  Rider exchanges or riders carrying excessive speed in the coned bypass lane will be disqualified. 

    Rider assistance is not permitted in the exchange zone, with the exception of a quick bottle hand-up .  If a rider needs support with a mechanical issue, or must stop for extended restocking of food or fluids, this must be done outside the exchange zone at the team tent or in the neutral zone outside the fenced exchange zone. 3. Please overtake with care and communicate to the slower rider. Slower riders please yield.

    * Bikes: This is a mountain bike race for mountain bikes only.  Drop bars are not permitted.

  • Race parking and team camps will be staged in the Mountain Vista High School parking lots.  (Please see the downloadable Venue Layout PPF link on the Course Info section).

    Duo and Trio Team camps will be located in the pink shaded area on the east side of Mountain Vista High School.  Each team will be allowed one vehicle and one 10x10 team canopy/tent taking up a total of two parking spaces.  Parking spaces will be pre-assigned. 

    For solo riders, there will be a tented Solo Support Area immediately adjacent to the Exchange Zone.  Solo riders will park at the south end of the blue shaded area.

    All additional team vehicles and spectator vehicles will park in the blue shaded area on the west side of Mountain Vista High School.

    No bikes with race number plates are allowed in or near the yellow shaded area (with the exception of bikes going in and out of the exchange zone via the dedicated entrance locations) once the race has started.  Timing equipment will be active and we do not want stray times to be recorded by bikes in the yellow zone. 

  • You have two choices for packet pickup:

      • Early Packet Pickup TBD

      • Race Morning  from 5:30am until 7:15am adjacent to the start/finish line at Mountain Vista High School in Highlands Ranch. 

    Race Morning Registration available only if event is not sold out.

Contact Us

REGISTRATION

SOLO RIDERS: Fees TBD

TEAMS OF 2: Fees TBD

TEAMS OF 3: Fees TBD

REGISTRATION OPENS IN EARLY 2026

REFUND POLICY: We will make all efforts to hold the race, however we reserve the right to alter or shorten the course, or cancel the event in the case of adverse conditions. Once accepted, refunds of entry fees will not be issued for any reason. Entrants may cancel their entry up to 60 days before the race and receive a 75% credit toward another Racing Underground owned event through 2027. Entrants may cancel their entry 59-30 days before the event and receive a 50% credit toward another Racing Underground owned event through 2027. No credits, deferrals, or refunds for cancellations fewer than 30 days before the event.

***If you need to swap out a rider, let us know and we can transfer that slot to a new teammate at no charge.

COURSE INFO

The Rumble at the Ranch course is a 7.6 mile loop that covers a mix of beginner to intermediate singletrack trails as well as some double-track sections to allow for easy passing.  Total elevation gain per lap is 658 feet.  Lap start, finish, exchange zone, and team camps are located in the Mountain Vista High School parking lot.  The opening 300 yards and ending 150 yards are on paved surfaces.  65 percent of the course is super-fun beginner and intermediate level single track trails.  The remaining 35 percent of the course is double track for easy passing.

FYI: The single track sections of the course are within the HRCA Backcountry Wilderness Area.  Use of the trails within the Backcountry Wilderness Area is restricted to HRCA members only.  If you would like to get some ride-time in on those trails prior to race day, I would recommend registering for one or more of the HRCA Mountain Bike Series events this summer.  Three of the four series events take place on the same trails (not the exact same route) that the Rumble at the Ranch uses.  The HRCA MTB Series events are held on four Wednesday evenings in July and August.

COURSE MAP (pdf)
Interactive Map & Download GPX File

RESULTS & Photos

2025 Results & Photos

2026 Results & Photos