In this guide
The field has two selection routesTwenty-four teams play the Opening RoundThe familiar bracket begins with 64A seed is not a scoreUse the year and divisionMarch Madness is the NCAA Division I basketball championship tournament. For the men’s competition, the field expands from 68 to 76 teams beginning with the 2027 tournament, following the 2026/27 college season.
The expansion changes the opening stage while preserving a 64-team First Round afterward. First Four terminology belongs to the former opening format; the new Opening Round contains twelve games.
The field has two selection routes
The expanded field contains 32 automatic qualifiers and 44 at-large selections. Winning a conference tournament supplies the automatic route; the selection committee chooses the at-large field. Selection Sunday is the field-announcement programme, not an elimination game.
Twenty-four teams play the Opening Round
The twelve lowest-seeded automatic qualifiers and twelve lowest-seeded at-large teams take part. Twelve games produce twelve winners. The other 52 teams begin in the subsequent 64-team First Round.
The familiar bracket begins with 64
Twelve Opening Round winners plus 52 teams already placed there make 64. The subsequent rounds reduce the field through 32, 16, eight and four, before the championship game. Sweet 16 and Elite Eight are round labels, not separate tournaments.
| 2027 stage | Field effect |
|---|---|
| Opening Round | 24 teams produce 12 winners |
| First Round | 12 winners + 52 others = 64 |
| Regional semi-finals | Sweet 16 |
| Regional finals | Elite Eight |
A seed is not a score
A number beside a team in the bracket identifies its seeding context, not points already scored. A lower seed number can indicate the stronger assigned position even though the larger number would be preferable on the game scoreboard.
Use the year and division
The completed 2026 men’s tournament used the earlier field. The 2027 expansion must not be projected backwards. Preserve men’s, Division I, tournament year and round when organising programmes; women’s and other NCAA championships have their own brackets even where event language overlaps.