NCAA Basketball 2018 each team is "seeded", or ranked, within its region from 1 to 16. After an initial four games between eight lower-ranked teams, the tournament occurs during the course of three weekends, at pre-selected neutral sites across the United States. Lower-ranked teams are placed in the bracket against higher ranked teams. Each weekend eliminates three quarters of the teams, from a round of 64, to a "Sweet Sixteen", and for the last weekend of the tournament, a Final Four. The Final Four is usually played during the first weekend of April. These four teams, one from each region (East, South, Midwest, and West), then compete in one centralized location for the national championship.
The tournament has been at least partially televised since 1969. Currently, the games are broadcast by CBS, TBS, TNT, and truTV by the trade-name NCAA March Madness. Since 2011, all games are available for viewing nationwide and internationally, especially in the Philippines and Canada. As television coverage has grown, so too has the tournament's popularity. Currently, millions of Americans fill out a bracket, attempting to correctly predict the outcome of all 67 games of the tournament.
With 11 national titles, UCLA has the record for the most NCAA Men's Division I Basketball Championships; John Wooden coached UCLA to 10 of its 11 titles. The University of Kentucky is 2nd, with 8 national titles, while Indiana University and the University of North Carolina are tied for 3rd with 5 national titles. Duke University and the University of Connecticut are tied for 5th with 4 national titles. Since 1999, Connecticut has won four championships; Florida, North Carolina, and Duke have won two championships; and Maryland, Michigan State, Syracuse, Kansas, Kentucky, and Louisville have all won one championship.