| Year | Debater | Record | Result |
|---|---|---|---|
| 2007 | Will Jerne & Brian McDonald | 2-3 | Did Not Clear |
| 2006 | Will Jerne & Brian McDonald | 0-5 | Did Not Clear |
| 2004 | Kate Eklin & Cicely Miltich | 3-2 | Did Not Clear |
| 2004 | Brian Garshelis & Adam Lenarz | 4-1 | Semifinalist |
| 2003 | Kate Eklin & Cicely Miltich | 3-2 | Quarterfinalist |
| 2003 | Brian Garshelis & Jenni Heissel | 3-2 | Quarterfinalist |
| 2002 | Kate Eklin & Cicely Miltich | 3-3 | Did Not Clear |
| 2002 | Brian Garshelis & Jenni Heissel | 2-4 | Did Not Clear |
| 2001 | Matt Lenarz & Beth Watson | 3-3 | Did Not Clear |
| 2000 | Natalie Randall & Jessica Roskoski | 4-2 | Quarterfinalist |
| 1999 | Katie Marshall & Jessica Roskoski | 2-4 | Did Not Clear |
| 1998 | Joe Andrasko & Keely Johnson | 3-3 | Did Not Clear |
| 1997 | Joe Andrasko & Keely Johnson | 3-3 | Did Not Clear |
| 1997 | Melissa Benson & Brandon Lussier | 3-3 | Did Not Clear |
| 1996 | Andy Baltus & Amy Candy | 3-3 | Did Not Clear |
| 1995 | Andy Baltus & Amy Candy | 2-4 | Did Not Clear |
| 1994 | Jeff Connolly & Nelia Edwards | Unknown | Semifinalist |
| 1994 | Eric Lehto & Steve Olson | Unknown | Finalist |
| 1993 | Caleb Conley & Nelia Edwards | 4-0 | Quarterfinalist |
| 1993 | Jeff Connolly & Steve Olson | 0-4 | Did Not Clear |
| 1992 | Kayan Lewis & Steve Olson | 2-2 | Octafinalist |
| 1992 | Caleb Conley & Mike Heinlein | 1-3 | Did Not Clear |
| 1991 | Stephanie Omersa & Craig Solem | 3-1 | Octafinalist |
| 1990 | Steph Omersa & Craig Solem | 4-0 | Quarterfinalist |
| 1990 | Chris Crowe & Stephanie Olson | 1-3 | Did Not Clear |
| 1989 | 3-1 | Quarterfinalist | |
| 1989 | 0-4 | Did Not Clear | |
| 1988 | Mary O'Connor & Meg Valance | 2-2 | Octafinalist |
| 1987 | Mindy Finske & Mike Vergin | 2-2 | Quarterfinalist |
| 1987 | Meg Valance & Debbie Zahn | 2-2 | Octafinalist |
| 1986 | Karen Schillo & Mike Vergin | 3-1 | Quarterfinalist |
| 1986 | Jeff Olson & Kelly Ryan | 2-2 | Quarterfinalist |
| 1985 | Greg Crowe & Tracy Lessman | Unknown | Champion |
| 1985 | Bill Block & Aaron Kosola | Unknown | Octafinalist |
| 1984 | Mike Auger & Greg Crowe | 4-0 | Quarterfinalist |
| 1984 | Bill Block & Tracy Lessman | 3-1 | Semifinalist |
| 1983 | 3-1 | Quarterfinalist | |
| 1983 | 2-2 | Octafinalist | |
| 1982 | Bill Alexander & Sheri Block | 4-0 | Finalist |
| 1982 | 2-2 | Octafinalist | |
| 1981 | 1-3 | Did Not Clear | |
| 1981 | 2-2 | Quarterfinalist | |
| 1980 | 3-1 | Semifinalist | |
| 1980 | 1-3 | Did Not Clear | |
| 1979 | 4-0 | Quarterfinalist | |
| 1979 | 3-1 | Semifinalist | |
| 1978 | Scott Belderson & Mary Cox | Unknown | Did Not Clear |
| 1978 | Crystal Miner & Scott Perreault | Unknown | Did Not Clear |
| 1977 | Unknown | Quarterfinalist | |
| 1976 | Unknown | Quarterfinalist | |
| 1975 | Unknown | Quarterfinalist | |
| 1973 | Unknown | Did Not Clear | |
| 1971 | Unknown | Finalist | |
| 1970 | 8-2 | 2nd Place | |
| 1968 | 9-1 | 2nd Place | |
| 1967 | 8-2 | 3rd Place | |
| 1966 | 4-6 | 16th Place | |
| 1954 | Chas. Nelson, Audrey Mostoller & Mary Jo Gagnon | 4-2 | 6th Place |
| 1953 | 2-4 | 10th Place | |
| 1934 | Marion Latz, Elmer Madson, Jr. & Mary Walter | N/A | Semifinalist |
| 1928 | N/A | Unknown | |
| 1927 | N/A | Unknown | |
| 1914 | Harold C. Brown, Helen Weitzel & Eugene C. Cassidy | N/A | Semifinalist |