2017: 1-2 Nebraska
2016: 0-2 Minnesota
2015: 1-2 Illinois
2014: 4-0 Indiana
2013: 3-1 Indiana (6-team tourney)
2012: 3-0 Purdue (6-team tourney)
2011: 3-0 Illinois (6-team tourney)
2010: 3-0 Minnesota (6-team tourney)
2009: 1-2 Ohio State
The #1 seed won the tournament 5 straight years from 2010-2014.
2016: 0-2 Minnesota
2015: 1-2 Illinois
2014: 4-0 Indiana
2013: 3-1 Indiana (6-team tourney)
2012: 3-0 Purdue (6-team tourney)
2011: 3-0 Illinois (6-team tourney)
2010: 3-0 Minnesota (6-team tourney)
2009: 1-2 Ohio State
The #1 seed won the tournament 5 straight years from 2010-2014.