The NCAA Division I Baseball Championship is held each year from May through June and features 64 college baseball teams in the United States, culminating in the eight-team Men's College World Series at Charles Schwab Field Omaha in Omaha, Nebraska. The tournament is unique in that it features four tiers of competition, alternating between double-elimination brackets and best-of-three series. In fact, throughout the entire 64-team tournament, a team can lose a total of four games and still be crowned champions. During team selection, sixteen teams are given "national seeds". The top eight of these teams automatically host a super regional if they advance past the regional round, assuming that they have the facilities to do so. Only 2 times has a national seed not hosted due to lack of proper facilities. As in other NCAA tournaments, conference champions (usually determined by a tournament) receive automatic bids, and the selection committee fills the remaining spots. The first tier, called Regionals, consists of 16 locations that include four teams, seeded 1 through 4, competing in a double-elimination bracket. The 16 host sites are determined mostly by merit – most No. 1 seeds host – but are also contested by bids from schools guaranteeing the NCAA a certain amount of revenue from that regional. Host teams traditionally have a large advantage, although the home team for each game is determined by rule, so the host school sometimes plays as the visiting team. The winner of each regional moves on to the second tier, the Super Regionals. Super Regionals are played at eight locations throughout the country and consist of the 16 surviving teams, matched up by predetermined regional pairings. National seeds 1–8 cannot meet each other in the super regional and are guaranteed to host. If the higher national seed in the bracket is eliminated in the regional stage, but the lower national seed advances, the super regional will be played at the national seeded team's field. If the two seeds are not national seeds, the Super Regional will be bid upon by the two competing teams. If the national seed wins the regional but is unable to host, the Super Regional is awarded to the other regional winner in its bracket. This scenario played out in 2015 when national seed Missouri State could not host a Super Regional because the minor league Springfield Cardinals, which have scheduling priority at the stadium where