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.

USRA Weekly Racing Series feature winners and action shots from Harley-Davidson of Mason City and The Other Place Night at the Mason City Motor Speed
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USRA Weekly Racing Series feature winners and action shots from Auto Edge and Mason City Powersports Night at the Mason City Motor Speedway in Mason
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USMTS Modifieds and USRA Weekly Racing Series featuring Holley USRA Stock Cars and Out-Pace USRA B-Mods from the Diamond Jo Casino "All-In 30&qu
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USRA Weekly Racing Series opening night at the Mason City Motor Speedway in Mason City, Iowa, on Sunday, May 22, 2016.