Ivy League Baseball Championship Series Ivy League Baseball Championship Series The Ivy League Baseball Championship Series is the conference baseball championship of the NCAA Division I Ivy League. The top two finishers from the round-robin regular season participate in a best of three series held at campus sites, with the winner earning the conference's automatic bid to the NCAA Division I Baseball Championship. In 2018, defeated host in two games. In 1930, six of the eight Ivy League teams formed the Eastern Intercollegiate Baseball League. Harvard joined in 1934, while Brown, Army and Navy joined in 1948. When Army and Navy joined the Patriot League
Ivy League in 1937. Yale and Columbia previously fielded teams in the league but no longer do so. The Ivy League is home to some of the oldest college rugby teams in the United States. Although these teams are not "varsity" sports, they compete annually in the Ivy Rugby Conference. The table above includes the number of team championships won from the beginning of official Ivy League competition (1956–57 academic year) through 2016-17. Princeton and Harvard have on occasion won ten or more Ivy League titles in a year, an achievement accomplished 10 times by Harvard and 24 times by Princeton, including