| 2023-24: Waterloo Duals (Dec 9, 2023) |
| 2022-23: Waterloo Duals (Dec 10, 2022) |
| 2021-22: Waterloo Duals (Dec 11, 2021) |
| 2019-2020: Waterloo Duals (Dec 14, 2019) |
| 2018-19: Waterloo Duals (Dec 15, 2018) |
| 2017-18: Waterloo Duals (Dec 16, 2017) |
| 2016-17: Waterloo Duals (Dec 17, 2016) |
| 2015-16: Waterloo Duals (Dec 12, 2015) |
| 2014-15: Waterloo Duals (Dec 13, 2014) |
| 2013-14: Waterloo Duals (Dec 14, 2013) |
| 2012-13: Waterloo Duals (Dec 8, 2012) |
| 2011-12: 36th Annual Waterloo Invitational Wrestling Tournament (Dec 10, 2011) |
| 2010-11: 35th Annual Waterloo Invitational Wrestling Tournament (Dec 11, 2010) |
| 2009-2010: 34th Annual Waterloo Invitational Wrestling Tournament (Dec 12, 2009) |
| 2008-09: 33rd Annual Waterloo Invitational Wrestling Tournament (Dec 13, 2008) |
| 2007-08: 32nd Annual Waterloo Invitational Wrestling Tournament (Dec 8, 2007) |
| 2006-07: 31st Annual Waterloo Invitational Wrestling Tournament (Dec 9, 2006) |
| 2003-04: 28th Annual Waterloo Invitational Wrestling Tournament (Dec 13, 2003) |
| 1992-93: 17th Annual Waterloo Invitational Wrestling Tournament (Dec 30, 1992) |
| 1991-92: 16th Annual Waterloo Invitational Wrestling Tournament (Dec 28, 1991) |
| 1990-91: 15th Annual Waterloo Invitational Wrestling Tournament (Dec 29, 1990) |
| 1989-1990: 14th Annual Waterloo Invitational Wrestling Tournament (Dec 30, 1989) |
| 1988-89: 13th Annual Waterloo Invitational Wrestling Tournament (Dec 30, 1988) |
| 1987-88: 12th Annual Waterloo Invitational Wrestling Tournament (Dec 30, 1987) |
| 1986-87: 11th Annual Waterloo Invitational Wrestling Tournament (Dec 27, 1986) |
| 1985-86: 10th Annual Waterloo Invitational Wrestling Tournament (Dec 28, 1985) |
| 1984-85: 9th Annual Waterloo Invitational Wrestling Tournament (Dec 29, 1984) |
| 1983-84: 8th Annual Waterloo Invitational Wrestling Tournament (Dec 28, 1983) |
| 1982-83: 7th Annual Waterloo Invitational Wrestling Tournament (Dec 29, 1982) |
| 1981-82: 6th Annual Waterloo Invitational Wrestling Tournament (Dec 30, 1981) |
| 1980-81: 5th Annual Waterloo Invitational Wrestling Tournament (Dec 27, 1980) |
| 1979-1980: 4th Annual Waterloo Invitational Wrestling Tournament (Dec 29, 1979) |
| 1978-79: 3rd Annual Waterloo Invitational Wrestling Tournament (Dec 30, 1978) |
| 1977-78: 2nd Annual Waterloo Invitational Wrestling Tournament (Jan 28, 1978) |
| 1976-77: 1st Annual Waterloo Invitational Wrestling Tournament (Jan 8, 1977) |
