2010
1st Place: Ohio State University
2nd Place: University of Nebraska

2009
1st Place: University of Illinois at Urbana-Champaign
2nd Place: University of California, Riverside

2008
1st Place: University of California, Riverside
2nd Place: North Carolina State University

2007
1st Place: University of Arkansas
2nd Place: Clemson University

2006
1st Place: University of Nebraska
2nd Place: Oklahoma State University

2005
1st Place: University of Missouri
2nd Place: Montana State University

2004
1st Place: University of Missouri
2nd Place: Auburn University

2003
1st Place: North Carolina State University
2nd Place: University of Georgia

2002
1st Place: Texas A&M University
2nd Place: North Carolina State University

1984
1st Place: Oregon State University
2nd Place: North Carolina State University

1983
1st Place: Kansas State University