2021 Big Bore Thunder

Saturday – Sunday, June 12-13, 2021
Pueblo Motorsports Park, Pueblo, CO

Our Big Bore Premier Event of the Year!

This event features the thunderous upper class sports-cars, racing sedans, Formula 5000 and Indy race cars.


On Thursday, the gates open at noon for early move-in.  On Friday, the gates open at 7:00 AM for an optional open-lapping, test and tune day.  You can register for open-lapping (1/2 day or full day) in advance online via Motorsportreg.com, or in person at the track.

Saturday and Sunday will be full days of racing from 8:30 to 5:00.  On Saturday, there will be a morning practice session, followed by a qualifying session, and then two races per run group.  On Sunday, there will be a short test/tune session followed by three races per run group.  As usual free worker rides are available during lunch on both days.

As is RMVR’s tradition, there will be dinner party at the track on Saturday night including a live band, catered barbecue, and an open bar.  One dinner ticket is included with each driver registration.  Additional tickets are available for crew, family and guests.

Pueblo Motorsports Park

This fun and challenging 2.2-mile road course combines a 1/4 mile drag strip with 10 technical turns.  A large grandstand on the drag strip and two smaller stands close to the action on the road course provide excellent and views for spectators.  For drivers and crew, PMP provides a large paddock area and RV spots will full hookups are available.  Admission is free for spectators and they have full paddock access!  Hot food and beverages are available all day.  Gates open at 7:00 AM.

Preliminary Run Groups

These preliminary run groups are subject to change and not listed in any particular order:

    • VW Power Formula Cars
    • Small Bore Production Cars
    • Formula Fords / Wings and Things / Sports Racers
    • Mid and Big Bore Production Cars
    • Gateway Group (if sufficient entries)

Entry Fees –

 (To be charged to your credit card after the race weekend.)

  • Early bird entry – $335 available until midnight on Friday, May 21st
  • Regular entry – $360
  • Late entry – $385 starts at 12:01 am on Thursday,  June 3rd
  • At-event entry – $460

Related Information

Google Map



Video Credit: Jeffrey Sokol