| Year | Debater | Record | Result |
|---|---|---|---|
| 2013 | Charles Varberg & Gaochy Yang | 1-4 | Did Not Clear |
| 2011 | Josiah Bender & Gaochy Yang | 2-3 | Did Not Clear |
| 1954 | Jerry Gruenhagen, Garfield Brown, John Bohannon & Duane Shelton | 3-3 | 7th Place |
| 1952 | 3-3 | 9th Place | |
| 1949 | Lila Hietala, Sally Hilton, Eleta Sanderson & Jim Seeden | 3-3 | 5th Place |
| 1946 | Douglas Maberry & Calvin Peterson | 2-1 | 3rd Place |