Images from the USMTS Hunt for the Casey's Cup and Summit USRA Weekly Racing Series at the Mason City Motor Speedway in Mason City, Iowa, on Su
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Images from the Lucas Oil ASCS and Summit USRA Weekly Racing Series presented by Casey's General Stores at the Mason City Motor Speedway i
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Images from the Ted Zieman Memorial presented by Pabst Blue Ribbon during the Summit USRA Weekly Racing Series at the Mason City Motor Speedway in
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Images from the Dale Kjellsen Memorial season opener on Sunday, June 3, 2018, at the Mason City Motor Speedway in Mason City, Iowa.

Summit USRA Weekly Racing Series action shots from the Mason City Motor Speedway in Mason City, Iowa, on Sunday, May 14, 2017.

Summit USRA Weekly Racing Series feature winners and action shots from the Mason City Motor Speedway in Mason City, Iowa, on Sunday, May 7, 2017.

USRA Weekly Racing Series feature winners from the Mason City Motor Speedway in Mason City, Iowa, on Sunday, Aug. 14, 2016.