2023 – Joe Palmer, Norwalk (View complete standings – Select 2023 from drop-down menu)
2022 – Mike McCoy, Norwalk (View complete standings – Select 2022 from drop-down menu)
2021 – Joe Palmer, Norwalk (View complete standings – Select 2021 from drop-down menu)
2020 – Joe Palmer, Norwalk (View complete standings – Select 2020 from drop-down menu)
2019 – Gene Elliott, West Des Moines (View complete standings)
2018 – Joe Palmer, West Des Moines  (View complete standings)
2017 – Gene Elliott, West Des Moines (View complete standings)
2016 – Gene Elliott, West Des Moines (View complete standings)
2015 – Mike McCoy, Des Moines (View complete standings)
2014 – Joe Palmer, West Des Moines (View complete standings)
2013 – Mike McCoy, West Des Moines (View complete standings)
2012 – Gene Elliott, West Des Moines (View complete standings)
2011 – Jim Curell, Boone (View complete standings)
2010 – Jim Curell, Boone (View complete standings)
2009 – Jim Butler, Fort Madison (View complete standings)
2008 – Bill Manske, Algona (View complete standings)
2007 – Jim Butler, Fort Madison (View complete standings)
2006 – David Studer, West Des Moines (View complete standings)
2005 – Jim Butler, Fort Madison (View complete standings)
2004 – John Peters, Muscatine (View complete standings)
2003 – Dan Naughton, Marion (View complete standings)
2002 – Dan Naughton, Marion (View complete standings)
2001 – Dave Sergeant, Fort Dodge
2000 – Gary Engle, Ottumwa
1999 – Dave Sergeant, Fort Dodge
1998 – Dave Sergeant, Fort Dodge
1997 – Dave Sergeant, Fort Dodge
1996 – Scott Carnes, Cedar Rapids
1995 – Tom Sandie, Urbandale
1994 – Bob Leahy, Cedar Falls
1993 – Jack Kinley, Des Moines
1992 – Bob Leahy, Cedar Falls
1991 – Jim Mitchell, Burlington
1990 – Jim Mitchell, Burlington
1989 – John Campbell, Oskaloosa
1988 – George Turner, Des Moines
1987 – John Jacobs, Cedar Rapids
1986 – Jim Mitchell, Des Moines
1985 – John Jacobs, Cedar Rapids