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ChampCar Endurance Series Show-Me State Showdown
OIRChampCar Endurance Series returns for their annual "Show-Me State Showdown" featuring a 7 hour and an 8 hour endurance race.
$10
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ChampCar Endurance Series
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Show-Me State Showdown Promoter Test Day
OIRShow-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
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ChampCar Endurance Series Show-Me State Showdown
OIRChampCar Endurance Series is excited to present the Show-Me State Showdown August 9-10. An endurance racing series for racers without significant prices, or rulebooks to follow. There will be an
$10