| Year | Location: | Results | |
| 2010 | University of Maryland. College Park, MD | ||
| 2009 | UC Irvine. Irvine, CA | ||
| 2008 | Swarthmore College. Swarthmore, PA. | ||
| 2007 | UC Berkley. Berkeley, CA | 1st- UC Irvine, 2nd- UC Berkeley, 3rd- UC San Diego | |
| 2006 | Yale Universiy. New Haven, CT | 1st- UC San Diego | |
| 2005 | University of San Diego. San Diego, CA. | 1st- UC San Diego, 2nd- UC Los Angeles | |
| 2003 | UC San Diego. San Diego, CA. | ||
| 2002 | Easter Illinois University. Charleston, IL. | ||
| 2001 | Albright College. Reading, PA. | ||
| 2000 | Stanford Universtiy. Stanford, CA. | ||
| 1999 | Swarthmore College. Swarthmore, PA. | 1st- Stanford University, 2nd- Howard University, 3rd- George Washington University | |
| 1998 | University of Maryland. College Park, MD. | 1st- Stanford University, 2nd- Howard University, 3rd- University of Maryland | |
| 1997 | UC Davis. Davis, CA. | 1st- Stanford University, 2nd UC Berkeley, 3rd- UC Davis | |
| 1996 | Swarthmore College. Swarthmore, PA. | 1st- Bryn Mawr College, 2nd Howard University, 3rd- George Washington University | |
| 1995 | Swarthmore College. Swarthmore, PA. | 1st- Howard University, 2nd- University of Pennsylvania |