| Year | Debater | Record | Result |
|---|---|---|---|
| 2013 | Kentucky Morrow & Hirsch Shekhar | 5-0 | Champion |
| 2013 | Allen Wang & Adele Watkins | 3-2 | Did Not Clear |
| 2012 | Michael McGrath & Kentucky Morrow | 4-1 | Finalist |
| 2012 | Hannah Stafford & Adele Watkins | 2-3 | Did Not Clear |
| 2011 | Michael McGrath & Kentucky Morrow | 4-1 | Champion |
| 2011 | Hannah Stafford & Adele Watkins | 2-3 | Did Not Clear |
| 2010 | Tom Madsen & David Kang | 4-1 | Quarterfinalist |
| 2010 | Michael McGrath & Kentucky Morrow | 2-3 | Did Not Clear |
| 2009 | David Kang, Tom Madsen & Sarah Watson (Alt) | 3-2 | Quarterfinalist |
| 2009 | Oliver Zosel, Michael McGrath & Max Johnson (Alt) | 0-5 | Did Not Clear |
| 2008 | Lucy Litman & Andrew McCarty | 3-2 | Quarterfinalist |
| 2005 | Lucy Litman & Wanda Wang | 0-5 | Did Not Clear |
| 2004 | Joshua Garen & Nathan Ratner | 3-2 | Champion |
| 2003 | Joshua Garen & Ben Meiches | 4-1 | Champion |
| 2002 | Ben Meiches & Joshua Garen | 3-3 | Did Not Clear |
| 2002 | Eric Hamm & Ryan Kagin | 2-4 | Did Not Clear |
| 2001 | Maggie Berthiaume & Julia Zhang | 4-2 | Semifinalist |
| 2000 | Maggie Berthiaume & Julia Zhang | 4-2 | Quarterfinalist |
| 1999 | Maggie Berthiaume & Geoffrey Garen | 6-0 | Quarterfinalist |
| 1999 | Brian Malkerson & Julia Zhang | 3-3 | Did Not Clear |
| 1998 | Geoffrey Garen & Dan Lowin | 5-1 | Quarterfinalist |
| 1997 | Adam Garen & Patrick O'Brien | 5-1 | Semifinalist |
| 1997 | Daniel Lowin & Geoffrey Garen | 4-2 | Did Not Clear |
| 1996 | Kiva Garen & John Simensen | 6-0 | Champion |
| 1996 | Adam Garen & Dan Lowin | 3-3 | Did Not Clear |
| 1995 | Cathy Hwang & Kiva Garen | 5-1 | Quarterfinalist |
| 1995 | Nicole Narotzky & John Strand | 2-4 | Did Not Clear |
| 1994 | Mike Botvinnik & Kiva Garen | Unknown | Did Not Clear |
| 1989 | 3-1 | Semifinalist | |
| 1987 | Peter Hoffman & James Lopez | 2-2 | Quarterfinalist |
| 1987 | Joe Dobrin & Brad Schultze | 2-2 | Did Not Clear |
| 1986 | Amy Bergquist & Joshua Marrow | 4-0 | Quarterfinalist |
| 1986 | Joe Dobrin & James Lopez | 3-1 | Octafinalist |
| 1985 | Joshua Morrow & Mary Wilson | Unknown | Did Not Clear |
| 1984 | Henry Hale & Jon Traub | 3-1 | Quarterfinalist |
| 1984 | Farzad Alvi & Jason Myers | 1-3 | Did Not Clear |
| 1983 | 2-2 | Octafinalist | |
| 1983 | 2-2 | Octafinalist | |
| 1982 | 2-2 | Octafinalist | |
| 1980 | 4-0 | Finalist | |
| 1980 | 1-3 | Did Not Clear | |
| 1979 | 4-0 | Quarterfinalist | |
| 1978 | David Grahn & Rick Hagen | Unknown | Did Not Clear |
| 1978 | Doug Kuller & Tim Magee | Unknown | Did Not Clear |
| 1976 | Unknown | Champion | |
| 1975 | Unknown | Semifinalist |