1970 – University of Guelph

1971 – Louisiana State University

1972 – University of Wisconsin

1973 – West Virginia University

1974 – Cal Poly University, Pomona 

1975 – Michigan State University

1976 – University of Georgia

1977 – Virginia Polytechnic Institute and State University

1978 – University of Guelph

1979 – Kansas State University

1980 – University of Florida

1981 – University of Arizona

1982 – Pennsylvania State University

1983 – Purdue University

1984 – Iowa State University

1985 – University of Guelph

1986 – University of Georgia

1987 – University of Montreal

1988 – Ohio State University

1989 – Louisiana State University

1990 – Pennsylvania State University

1991 – Kansas State University

1992 – University of Texas

1993 – Cal Poly University, San Luis Obispo

1994 – University of Illinois

1995 – University of Guelph

1996 – Ball State University

1997 – University of Arkansas

1998 – West Virginia University

1999 – University of Kentucky

2000 – University of Wisconsin-Madison

2001 – University of Montreal

2002 – Temple University

2003 – North Carolina State University

2004 – University of Florida

2005 – Ohio State University

2006 – University of Maryland

2007 – Louisiana State University

2008 – University of Guelph

2009 – Pennsylvania State University

2010 – University of Nevada, Las Vegas

2011 – Purdue University

2012 – Florida International University

2013 – University of Georgia

2014 – University of Wisconsin - Madison

2015 – Cal Poly University, San Luis Obispo

2016 – Ohio State University

2017 – University of Maryland

2018 – Pennsylvania State University

2019 – University of Georgia

2020 – Cornell University [cancelled]

2021 – Cornell University [virtual]

2022 – Louisiana State University

2023 – Kansas State University 

2024 – University of California, Davis

2025 – University of Guelph

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