NCAA Division I Conference
|Number of teams:||Men: 12|
|Defending champions (men):||Princeton Tigers|
|Defending champions (women):||Harvard Crimson|
ECAC Hockey is one of the six conferences that compete in NCAA Division I ice hockey. The conference used to be affiliated with the Eastern College Athletic Conference, a consortium of over 300 colleges in the eastern United States. This relationship ended in 2004, however the ECAC acronym was retained in the name of the hockey conference.
The ECAC Hockey League was founded in 1962. In June 1983, concerns that the Ivy League schools were potentially leaving the conference and disagreements over schedule length versus academics caused Boston University, Boston College, Providence, Northeastern and New Hampshire to decide to leave the ECAC to form what would become Hockey East, which began play in 1984-1985 season. By that fall, Maine also departed the ECAC for the new conference. This left the ECAC with twelve teams (Army, Brown, Clarkson, Colgate, Cornell, Dartmouth, Harvard, Princeton, RPI, St. Lawrence, Vermont, and Yale). Army would stay in the conference until the end of the 1990-1991 season, at which point they became independent (they now play in Atlantic Hockey) and were replaced by Union College. Vermont left the ECAC for Hockey East at the end of the 2004-2005 season, and were replaced in the conference by Quinnipiac.
Six of the members of ECAC Hockey are also members of the Ivy League, and all of the Ivy universities with Division I ice hockey programs are also members of ECAC Hockey. Neither the University of Pennsylvania nor Columbia University have intercollegiate ice hockey programs. UPenn supported an intercollegiate varsity hockey program in the past and was an ECAC Hockey member from 1966 to 1978 before the team was disbanded. The Ivy school that has the best regular season record against other Ivy opponents is crowned the Ivy League ice hockey champion. Yale won the 2009 Ivy League ice hockey championship. The Ivy League schools require their teams to play seasons that are about three weeks shorter than those of the other schools in the league. Thus, they enter the league schedule with fewer non-conference warm-up games, though Harvard competes in the annual Beanpot Tournament and Cornell hosts a holiday tournament in Estero, Florida.
|Institution||Location||Nickname||Founded||Historical Affiliation||Enrollment||Primary Conference|
|Brown University||Providence, Rhode Island||Bears||1764||Nonsectarian, founded by Baptists, but founding charter promises "no religious tests" and "full liberty of conscience"||7,744||Ivy League|
|Clarkson University||Potsdam, New York||Golden Knights||1896||Private/Non-sectarian||3,100||Liberty League (D-III)|
|Colgate University||Hamilton, New York||Raiders||1819||Private/Non-sectarian, founded by Baptists||2,800||Patriot League|
|Cornell University||Ithaca, New York||Big Red||1865||Private/Non-sectarian||20,400||Ivy League|
|Dartmouth College||Hanover, New Hampshire||Big Green||1769||Private/Congregationalist||5,753||Ivy League|
|Harvard University||Cambridge, Massachusetts||Crimson||1636||Private/Unitarian||20,042||Ivy League|
|Princeton University||Princeton, New Jersey||Tigers||1746||Nonsectarian, but founded by Presbyterians||6,677 ||Ivy League|
|Quinnipiac University||Hamden, Connecticut||Bobcats||1929||Private/Non-sectarian||7,700||NEC|
|Rensselaer Polytechnic Institute||Troy, New York||Engineers||1824||Private/Non-sectarian||6,376||Liberty League (D-III)|
|St. Lawrence University||Canton, New York||Saints||1856||Non-denominational, founded by Universalist Church of America||2,100||Liberty League (D-III)|
|Union College||Schenectady, New York||Dutchmen||1795||Private/Non-sectarian||2,100||Liberty League (D-III)|
|Yale University||New Haven, Connecticut||Bulldogs||1701||Private/Congregationalist||11,483||Ivy League|
Men's ECAC championship games
The winner of the game is awarded the Whitelaw Cup and receives an automatic bid to the NCAA Men's Division I Hockey Tournament.
The Cleary Cup, named for former Harvard player and coach Bill Cleary, is awarded to the regular-season champion (the team with the best in-conference record). At present, this team is given the top seed in the ECAC conference tournament (including the first-round bye given to the top four seeded teams), but is not given any special consideration in the NCAA tournament.
- 1984–85 Rensselaer
- 1985–86 Harvard
- 1986–87 Harvard
- 1987–88 Harvard and St. Lawrence
- 1988–89 Harvard
- 1989–90 Colgate
- 1990–91 Clarkson
- 1991–92 Harvard
- 1992–93 Harvard
- 1993–94 Harvard
- 1994–95 Clarkson
- 1995–96 Vermont
- 1996–97 Clarkson
- 1997–98 Yale
- 1998–99 Clarkson
- 1999–00 St. Lawrence
- 2000–01 Clarkson
- 2001–02 Cornell
- 2002–03 Cornell
- 2003–04 Colgate
- 2004–05 Cornell
- 2005–06 Colgate and Dartmouth
- 2006–07 St. Lawrence
- 2007–08 Clarkson
- 2008–09 Yale
- 2009–10 Yale
- 2010–11 Union
- 2011–12 Union
- 2012–13 Quinnipiac
- 2013–14 Union
- 2014–15 Quinnipiac
- 2015–16 Quinnipiac
- 2016–17 Harvard and Union
- 2017–18 Cornell
- 2018-19 Quinnipiac and Cornell
Women's ECAC championship games
|Brown||Meehan Auditorium (1962)||3,100|
|Clarkson||Cheel Arena (1991)||3,000|
|Cornell||Lynah Rink (1957)||4,267|
|Dartmouth||Thompson Arena (1975)||4,500|
|Harvard||Bright-Landry Hockey Center (1956/1979)||2,850|
|Princeton||Hobey Baker Memorial Rink (1923)||2,092|
|Quinnipiac||TD Bank Sports Center (2007)||3,386|
|Rensselaer||Houston Field House (1949)||4,780|
|St. Lawrence||Appleton Arena (1951)||3,000|
|Union||Frank L. Messa Rink at Achilles Center (1975)||2,225|
|Yale||Ingalls Rink (1958)||3,486|
(as of the start of the 2015-16 season)
- In 2000, St. Lawrence University won the longest game in NCAA tournament history. St. Lawrence defeated Boston University in quadruple overtime by a score of 3-2. Currently, this game is the fifth longest game in NCAA division I history. 
- On March 4, 2006, Union College played host to the then longest NCAA men's ice hockey game in NCAA history. In Game 2 of the first round of the 2006 ECACHL Tournament (best of three series) between Yale University and Union, Yale won 3-2 1:35 into the 5th overtime. Overall, the game took 141:35 to decide the winner. This was the first D-I men's game to go into a fifth 20 minute overtime period 
- On March 10, 1996 the longest women's game in NCAA D-I history took place between New Hampshire and Providence for the ECAC championship going 5 overtimes and 145 minutes 35 seconds. UNH won the game 3-2
- On March 11, 2010 Union College was defeated by Quinnipiac 3-2. The game, which lasted 150 minutes and 22 seconds, set a new record for the longest hockey game in NCAA history replacing the 2006 Union-Yale game. This would be the longest game in D-I history until a 2015 game between Notre Dame and Massachusetts broke the record by one minute 20 seconds.
- The ECAC has been involved in 5 of the 8 longest games in NCAA Men's D-I history.
- Cornell University recorded the only undefeated season in NCAA Division I Hockey history in 1970. 
- Colgate University is the last ECAC Hockey team to have reached the NCAA Men's Championship Game in 1990.
- Comparison of game results between tied teams (head to head).
- Comparison of results of games against the top four teams.
- Comparison of results of games against the top eight teams.
- Goal differential in head-to-head competition.
- Goal differential in games against the top four teams.
- Goal differential in games against the top eight teams.
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- About Hockey East
- Ivy League standings
- Brown's website characterizes it as "the Baptist answer to Congregationalist Yale and Harvard; Presbyterian Princeton; and Episcopalian Penn and Columbia," but adds that at the time it was "the only one that welcomed students of all religious persuasions." Brown's charter stated that "into this liberal and catholic institution shall never be admitted any religious tests, but on the contrary, all the members hereof shall forever enjoy full, free, absolute, and uninterrupted liberty of conscience." The charter called for twenty-two of the thirty-six trustees to be Baptists, but required that the remainder be "five Friends, four Congregationalists, and five Episcopalians"
- facts about Brown University
- Colgate University: History & Traditions accessed 04-22-2008
- Cornell facts sheet
- Dartmouth enrollment data sheet
- Harvard at a glance
- http://www.princeton.edu/~oktour/virtualtour/Stop05.htm Princeton online campus tour
- Princeton University profile
- Yale University factsheet
- St. Lawrence University: Men's Hockey
- USCHO.com :: U.S. College Hockey Online :: NCAA Longest_games
- :: Game is longest ever in college hockey
- NCAA Men's Division I Ice Hockey History
- ECAC Hockey home pages:
- ECAC Hockey to Celebrate 50th Anniversary (September 8, 2010 press release). ECAC Hockey official website. Retrieved 2010-09-25.
|NCAA Division I hockey conferences|
|Current||Atlantic Hockey - Big Ten Conference - Central Collegiate Hockey Association - College Hockey America (women's) - ECAC Hockey - Hockey East - National Collegiate Hockey Conference - New England Women's Hockey Alliance - Western Collegiate Hockey Association (women's) - Independents|
|Former||College Hockey America (men's) - Great West Hockey Conference - Metro Atlantic Athletic Conference - Tri-State League - Western Collegiate Hockey Association (men's)|
|Championships: Men / Women|