August 10, 2017
Diamond Jo Casino USMTS Double Down 30s coming Aug. 13

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The meanest machines on dirt invade the Mason City Motor Speedway this Sunday, Aug. 13, when the titans of the United States Modified Touring Series bring the big boom to do battle in Mason City during the USMTS Hunt for the Casey's Cup! See the big names on the big track and on the gas with the Diamond Jo Casino Double Down 30s and two huge main events for the titans of the USMTS plus the Summit USRA Weekly Racing Series featuring Stock Cars, B-Mods, Hobby Stocks and Rookies Rockin’ Tuners, it's gonna be a party of epic proportions! Gates open at 5 p.m. with hot laps at 6 and racing to follow! This Sunday it's gonna be a blast... So don't be afraid of the fast!