ECAC champion 12 times and Ivy League champion 22 times, and recorded the only undefeated season in NCAA Division I Hockey history in 1970. The men's lacrosse team has been NCAA champion three times and Ivy League champion 29 times. The men's Lightweight rowing team varsity 8+ has won the IRA regatta seven times since 1992 (1992, 2006–08, 2014, 2015 & 2017). The women's polo team has won the National Women's Polo Championship 15 times and the women's hockey team has been Ivy League champion 14 times. Championship teams Baseball Ivy 1972, 1977, 1979, 1982, 2012 EIBL 1939, 1940, 1952, 1972, 1977 Men's basketball Ivy 1988, 2008, 2009, 2010 Women's basketball Ivy 2008 Men's cross country Heptagonal Champions 1939, 1940, 1953, 1954, 1955, 1957, 1961, 1963, 1993 Ivy Champions 1957, 1961, 1963, 1992, 1993 Women's cross country Heptagonal Champions 1991, 1992, 1993, 1998, 2011, 2012 Football National 1915, 1921, 1922, 1939 Ivy 1971, 1988, 1990 Sprint football CSFL 1975(Co-Champs), 1978, 1982, 1984(Tri-Champs), 1986(Tri-Champs), 2006 Field Hockey Ivy 1991 Men's ice hockey NCAA 1967, 1970 ECAC (12) 1967, 1968, 1969, 1970, 1973, 1980, 1986, 1996, 1997, 2003, 2005, 2010 Ivy (25) 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1977, 1978, 1983*, 1984*, 1985*, 1996, 1997, 2002, 2003, 2004*, 2005, 2012, 2014, 2018, 2019, 2020, 2023 (*shared title) Ned Harkness Cup 2003, 2005, 2008, 2013 Women's ice hockey NCAA Frozen Four 2010, 2011, 2012, 2019 ECAC 2010, 2011, 2013, 2014 Ivy 1976, 1977, 1978, 1979, 1980, 1981, 1990, 1996, 2010, 2011, 2012, 2013, 2017, 2018, 2020 Men's lacrosse NCAA 1971, 1976, 1977 Ivy 1966, 1968, 1969*, 1970, 1971, 1972, 1974, 1975, 1976, 1977, 1978, 1979, 1980*, 1981, 1982, 1983*, 1987, 2003*, 2004*, 2005, 2006*, 2007, 2008*, 2009*, 2010*, 2011, 2013, 2014*, 2015*, 2022* (*shared title) Ivy League Tournament Champions 2011, 2018 Women's lacrosse Ivy 2006*, 2017* (* shared) Men's polo National 1937, 1955, 1956, 1958, 1959, 1961, 1962, 1963, 1966, 1992, 2005 Women's polo National 1979, 1984, 1985, 1986, 1987, 1988, 1991, 2000, 2001, 2002, 2003, 2004, 2011, 2015, 2016 Men's heavyweight crew Cornell's Crews have won more RAAC (12 of 21)(1871–1894) and IRA National Championships (26) than any other university, most recently: IRA National 1955, 1956, 1957, 1958, 1962, 1963, 1971, 1977, 1981, 1982 Eastern Sprints 1956, 1957, 1960, 1963 Men's lightweight crew IRA National 1992, 2006, 2007 2008 2014, 2015, 2017, 2019 Eastern Sprints 1949, 1963, 1964, 1965, 1967,