PREVIEW: Grosz confident heading into 360 Knoxville Nationals
By Spieker Promotions KNOXVILLE, Iowa (August 6, 2020) – The biggest 360 Sprint Car race of the year is upon us
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Knoxville 360 Nationals
Grosz Looking to Carry Nationals Momentum into Jackson Motorplex
By Spieker Promotions HARWOOD, N.D. (August 16, 2019) – Following a successful outing at the 360 Knoxville Nationals last weekend,
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Grosz excited to take on 360 Knoxville Nationals
By Spieker Promotions HARWOOD, N.D (August 1, 2019) – All eyes in the sprint car racing world turn to Iowa for
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