Luck Is On Chisholm’s Side At Mason City

MASON CITY, Iowa — The Summit USMTS National Championship presented by RacinDirt kicked off the three-day 10th annual USMTS North Iowa Nationals Thursday at the Pritchard Family Auto Stores Mason City Motor Speedway. In a prelude to the 25th anniversary USMTS Silver Jubilee here Aug. 16-19, Dylan Thornton looked to be on his way to his first USMTS triumph after leading the first 30 laps of the main event at North Iowa’s Action Track. After Thornton’s blow out, 2021 USMTS National Champion Dereck Ramirez assumed the lead but Chisholm was far too strong and pulled away over to a margin of victory of more than two seconds during the final four circuits.

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