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$7,500+ up for grabs in USCS Flip Flop 50 Sprint Car Shootout at Riverside Speedway on Friday and Saturday
At least $7,500 is up for grabs when the United Sprint Car Series presented by K&N Filters invades the historic Riverside International Speedway in West Memphis, Arkansas on Friday and Saturday, October 9th and 10th for the 12th annual USCS “Flip Flop 50”
