Grand Junction Motor Speedway is a world-class racing facility located in Grand Junction, Colorado. Racers love our fast and exciting .9 mile / 14 turn road racing circuit because of our long fast straights, tight technical turns, and the exciting passing opportunities that every lap on the track provides.
Racing at Grand Junction Motor Speedway will open you to the top level of competition. We have a local club championship series from April thru October that brings exciting competition to the Valley. In addition, we host World-class National and International events with karters from around the world!
Grand Junction Motor Speedway has everything you need to get into the fast and exciting sport of Sprint Kart Racing. We have motors, chassis’, and complete karts for sale.
Grand Junction Motor Speedway is also home to Tony Kart USA, Come by the track today to talk about racing at Grand Junction Motor Speedway. We would love to help you get into this exciting sport.
2026 Summer Series
Schedule:
Round 1 - May 10th (CW)
Round 2 - June 7th (CCW)
Round 3 - July 12th (CW)
Round 4 - August 23rd (CCW)
Round 5 - September 27th (CW)
Race Day Schedule(opens in new tab)
Classes:
LO206 Senior - 345lbs
LO206 Master - 380lbs
LO206 Cadet - 7-12yrs, 240lbs
Rental Kart Light - 140lbs
Rental Kart Heavy - 175lbs
Rules and Regulations:
GJMS Supplemental(opens in new tab)
NKA Rulebook(opens in new tab)
NKA 2026 Updates(opens in new tab)
Briggs and Stratton Factory Ruleset(opens in new tab)
Summer Series Standings(opens in new tab)
Rental Kart Time Attack Season Standings(opens in new tab)
