| From | To | Board 1 | Board 2 | Board 3 | Board 4 |
| 2024 | 2025 | Phil Stage | Jim Potts | ||
| 2023 | 2024 | Ted Smith | Bruce Campbell | ||
| 2022 | 2023 | (Robert Cargill) | Bill Hall | Zach Smith | |
| 2021 | 2022 | John Baker | Phil Stage | ||
| 2020 | 2022 | Tom Roth | Si Simonson | ||
| 2019 | 2021 | Michelle Theisen/Jerry Gardner*[1] | Larry Barker | ||
| 2018 | 2020 | Phil Stage | Robin Pond | ||
| 2017 | 2019 | John McCrea | Pam Kloepfer | ||
| 2016 | 2018 | Fred Klich/Larry Barker*[2] | Bill Nichols | ||
| 2015 | 2017 | Matt Reed | Phil Stage | ||
| 2014 | 2016 | Mike Langohr | Trista Opperman | ||
| 2013 | 2015 | Bill Nichols | Jim Craft | ||
| 2012 | 2014 | Phil Stage | Bruce Cowles | ||
| 2011 | 2013 | Ronnie Newman | Matt Reed | ||
| 2010 | 2012 | Phil Stage | Harry Bearman | ||
| 2009 | 2011 | Trista Opperman | Doug Christianson | ||
| 2008 | 2010 | Phil Stage | John Dowell | ||
| 2007 | 2009 | n/a | n/a | ||
| 2006 | 2008 | n/a | n/a | ||
| 2005 | 2007 | n/a | n/a | ||
| 2004 | 2006 | n/a | n/a | ||
| 2003 | 2005 | n/a | n/a | ||
| 2002 | 2004 | n/a | n/a | ||
| 2001 | 2003 | n/a | n/a | ||
| 2000 | 2002 | n/a | n/a | ||
| 1999 | 2001 | n/a | n/a | ||
| 1998 | 2000 | n/a | n/a | ||
| 1997 | 1999 | n/a | n/a | ||
| 1996 | 1998 | n/a | n/a | ||
| 1995 | 1997 | n/a | n/a | ||
| 1994 | 1996 | n/a | n/a | ||
| 1993 | 1995 | n/a | n/a | ||
| 1992 | 1994 | n/a | n/a | ||
| 1991 | 1993 | n/a | n/a | ||
| 1990 | 1992 | n/a | n/a |