How the Field Gets Built

The hardest choices are usually near the edge of the field. Committee members compare résumés, discuss injuries and weigh results that the rankings can value differently. Bracketology means predicting those selections and seeds. The published criteria give you a starting point; close cases still require judgment.

The 2026-27 season is the first with a 76-team field, so some of what follows is new for everyone, myself included.

Who is in the room

The Division I Men's Basketball Committee has 12 members. They are school and conference administrators, athletic directors and commissioners rather than coaches or media, nominated by their own conference and serving five-year terms staggered so the group is never replaced all at once. A member leaves the room whenever their own school comes up, and does not vote on it.

They watch games all season, review team sheets, and meet in person before Selection Sunday to build the field. The committee chair does a public bracket-reveal appearance in February, which is the only direct look anyone gets at the group's thinking before the field is announced.

The two ways in

Automatic bids go to the champion of each of the 32 Division I conferences, usually the conference tournament winner. The committee has no say over these. A team with a losing record in November can play its way in by winning three games in March, and the committee is required to seed it somewhere.

At-large bids are the other 44 spots, and they're the committee's real job. These go to the best teams that did not win their conference, judged on the full season. Almost every argument in bracketology happens here, around the last handful of at-large spots.

The process, in order

Step three is the one people underrate. The committee does not assign seeds directly. It builds one ranked list of 76 teams, and the seed lines fall out of that list. This is why a team can be described as the last 5-seed or the first 6-seed, and why understanding the list matters more than understanding any individual line.

The seven metrics on every team sheet

The committee's primary sorting tool is the NET ranking, the NCAA Evaluation Tool, which combines game results, opponent quality, game location and a capped scoring margin into one number refreshed daily. NET is where the sorting starts. It doesn't settle much on its own.

Alongside it, six more metrics appear on every team sheet: KPI (the Kevin Pauga Index), SOR (Strength of Record), WAB (Wins Above Bubble), BPI, KenPom, and T-Rank. A team needs an average ranking of 125 or better across those seven to be eligible for at-large consideration, and that's a floor. Nobody has ever gotten an at-large bid for clearing 125.

The metric the arguments keep returning to is the quadrant record, which sorts every game a team played into one of four tiers by opponent NET and where the game was played. It counts who a team beat and where. It can't tell you how the team looked doing it.

The same opponent counts differently depending on where you played them. Beating the NET number 60 team is a Q2 win at home and a Q1 win on the road. Quadrant 1 wins are the currency of at-large arguments, and Q3 or Q4 losses are the fastest way to undo a good résumé.

What else the committee looks at

The metrics are the spine, and the committee explicitly considers a longer list around them: head-to-head results, results against common opponents, non-conference strength of schedule, road and neutral-site performance, quality wins and bad losses, imbalanced conference schedules, and player or coach availability. That last one is why a team that lost its starting point guard in January gets discussed differently from its raw record.

None of these carry published weights. The committee is a group of people arguing from a shared set of facts, which is why you can't plug the numbers into a formula and get the bracket.

What the 76-team field changes

The old 68-team format had the First Four: eight teams in four play-in games, made up of the four lowest-seeded automatic qualifiers and the four lowest-seeded at-large teams.

The 76-team format replaces that with the Opening Round: 24 teams in 12 games across two days. Six of those games are the 12 lowest-seeded automatic qualifiers on the committee's list, and the other six are the 12 lowest-seeded at-large teams. Dayton and Wichita each host six of the 12 games in 2027 and 2028.

For anyone projecting brackets, this makes the job harder in three ways. There are more at-large spots to fill, so more teams are in the running. Which low-major champions play in the Opening Round now depends on their position among all the lowest-seeded automatic qualifiers rather than a group of four. And a team can be comfortably in the field while still facing real uncertainty about whether its season starts on Tuesday or Thursday, depending on where it lands in the back quarter of the seed list.

The 2027 calendar

See these dates alongside the Hall of Fame and the Oscars on the full cross-category calendar

The NCAA has not published exact dates for the entries marked as estimates above: the first NET rankings release, and the committee's February meeting and bracket-reveal show. I will replace them with the real dates once the 2027 ones are out.

Where my tools fit

In Bracket Studio, you can compare team sheets while placing teams on your seed list. It supports the current field format and saved brackets from earlier seasons.

Start with Bracket Studio to build a field, read How Bracket Studio's Scoring Works for how a finished bracket gets graded, or check the glossary if any term here was new.