May 21, 1950             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Herschel Buchanan
May 20, 1951             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Chug Montgomery
September 14, 1951             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Eddie Anderson
September 12, 1952             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Dominick Perlick
September 18, 1953             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Ernie Derr
September 17, 1954             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Don White
September 18, 1954             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Don White
September 16, 1955             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Johnny Beauchamp
May 27, 1956             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Don White
September 11, 1956             Clay County Fairgrounds, Spencer, IA      IMCA Sprint Car      Don Hutchinson
September 14, 1956             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Johnny Beauchamp
September 15, 1956             Clay County Fairgrounds, Spencer, IA      IMCA Sprint Car      Don Hutchinson
September 10, 1957             Clay County Fairgrounds, Spencer, IA      IMCA Sprint Car      Bobby Grim
September 13, 1957             Clay County Fairgrounds, Spencer, IA      IMCA Stock Car      Ernie Derr
September 14, 1957             Clay County Fairgrounds, Spencer, IA      IMCA Sprint Car      Bobby Grim
September 9, 1958             Clay County Fairgrounds, Spencer, IA      IMCA Sprint Car      Bobby Grim
September 15, 1959             Clay County Fairgrounds, Spencer, IA      IMCA Sprint Car      Jim Hurtubise
September 14, 1960             Clay County Fairgrounds, Spencer, IA      IMCA Sprint Car      Pete Folse
September 12, 2007             Clay County Fairgrounds, Spencer, IA      World of Outlaws Sprint Car      Donny Schatz
September 10, 2008             Clay County Fairgrounds, Spencer, IA      World of Outlaws Sprint Car      Donny Schatz
September 16, 2009             Clay County Fairgrounds, Spencer, IA      World of Outlaws Sprint Car      Jason Meyers
September 17, 2010             Clay County Fairgrounds, Spencer, IA      World of Outlaws Sprint Car      Jac Haudenschild
September 16, 2011       Arnold Motor Supply Shootout      Clay County Fairgrounds, Spencer, IA      World of Outlaws Sprint Car      Craig Dollansky
June 8, 2012             Clay County Fairgrounds, Spencer, IA      World of Outlaws Sprint Car      Brad Sweet
September 14, 2012       6th Arnold Motor Supply Shootout      Clay County Fairgrounds, Spencer, IA      World of Outlaws Sprint Car      Donny Schatz
September 13, 2013             Clay County Fairgrounds, Spencer, IA      World of Outlaws Sprint Car      Donny Schatz
September 12, 2014             Clay County Fairgrounds, Spencer, IA      World of Outlaws Sprint Car      Kraig Kinser