College baseball is baseball that is played on the intercollegiate level at institutions of higher education. In comparison to football and basketball, college competition in the United States plays a smaller role in developing professional players, as baseball’s professional minor leagues are more extensive. Moving directly from high school to the professional level is more common in baseball than in football or basketball. However, if players enroll at a four-year college, they must complete three years to regain eligibility, unless they reach age 21 before starting their third year of attendance. Players who enroll at junior colleges (i.e., two-year institutions) regain eligibility after one year at that level, Bryce Harper being a notable example. In 2013, there are 298 NCAA Division I teams in the United States. As with other U.S. intercollegiate sports, most college baseball is played under the auspices of the NCAA or the NAIA. College and university baseball teams that are club teams are organized under the National Club Baseball Association. The NCAA writes the rules of play, while each sanctioning body supervises season-ending tournaments. The final rounds of the NCAA tournaments are known as the College World Series; one is held on each of the three levels of competition sanctioned by the NCAA. The College World Series for Division I takes place in Omaha, Nebraska in June, following the regular season. The playoff bracket for Division I consists of 64 teams, with four teams playing at each of 16 regional sites (in a double-elimination format). The 16 winners advance to the Super Regionals at eight sites, played head-to-head in a best-of-three series. The eight winners then advance to the College World Series, a double elimination tournament (actually two separate four-team brackets) to determine the two national finalists. The finalists play a best-of-three series to determine the Division I national champion. In 2014, Vanderbilt won the College World Series.