Name: ChampCar Endurance Series Show-Me State Showdown
Start: 2026-11-07T00:00:00-06:00
End: 2026-11-08T23:59:59-06:00
Location: OIR

October 2026
NASA MidAmerica Season Finale & Regional Champs
October 16 - October 18

OIR
The season finale of NASA MidAmerica happens October 16-18 at Ozarks International Raceway. Track Day Friday, October 16, 2026
$10
K.A.R.T. Fall Event
October 23 - October 25

OIR
Get ready for the thrilling K.A.R.T. racers of all ages as they take to OIR for their fall event in 2026. Happening October 23-25.
Halloween Private Track Event
October 31 - November 1

OIR
OIR Private Track Weekend All Included Fee: $1,561.51 Limited to just 15 entries Open to Intermediate and Advanced drivers with track experience Whats Included 🏁 Premium Track Time & Expert
November 2026
Show-Me State Showdown Promoter Test Day
November 6 - November 7

OIR
Show-Me State Showdown Promoter Test Day About this event Test day for ChampCar World Series participants Up to 4 drivers included with each registration, additional drivers are $25 each Early registration
ChampCar Endurance Series Show-Me State Showdown
November 7 - November 8

OIR
ChampCar Endurance Series returns for their annual "Show-Me State Showdown" featuring a 7 hour and an 8 hour endurance race.
$10