| Year | Debater | Record | Result |
|---|---|---|---|
| 1998 | Joe Laizure & Billy Pierce | 3-3 | Did Not Clear |
| 1992 | Heather Bassett & Terry Hobbs | 1-3 | Did Not Clear |
| 1991 | Brett Kahnke & Hans Skulstad | 0-4 | Did Not Clear |
| 1990 | Nicole Kennedy & Nina Sarroub | 0-4 | Did Not Clear |
| 1987 | John Butler & Chris Dorn | 0-4 | Did Not Clear |
| 1986 | Ralph Haefner & Kelly Spangrud | 2-2 | Octafinalist |
| 1985 | Ralph Haefner & Kelly Spangrud | Unknown | Octafinalist |
| 1984 | Karen Booth & Heidi Mittelstadt | 2-2 | Octafinalist |
| 1981 | 3-1 | Octafinalist | |
| 1980 | 1-3 | Did Not Clear | |
| 1978 | Scott Opsal & Tim Spurgin | Unknown | Did Not Clear |
| 1978 | Tracy Adams & Al Gushurst | Unknown | Did Not Clear |
| 1977 | Ned Burneister & Dan Murray | Unknown | Did Not Clear |
| 1977 | Tim Spurgin & Sue Towner | Unknown | Did Not Clear |
| 1976 | Unknown | Did Not Clear | |
| 1975 | Unknown | Did Not Clear |