College Football Playoff Format Explained: How the 12-Team Bracket Works

College football's postseason has not looked like this for very long. The 12-team College Football Playoff format is now in its third season, and it has settled into a clear structure: five automatic bids, seven at-large spots, four byes and three rounds of bracket play before the national championship.

How Many Teams Make the Field?

Twelve teams make the CFP every year, split into two groups:

• Five automatic qualifiers, the highest-ranked champions from the sport's conferences
• Seven at-large selections, the best remaining teams regardless of conference

The Five Automatic Bids

Each Power Four conference champion (the ACC, Big Ten, Big 12 and SEC) gets an automatic bid no matter how the selection committee ranks them. A fifth automatic spot goes to the highest-ranked Group of Six conference champion, the best team from outside the Power Four leagues.

Notre Dame, which plays as an independent, is not eligible for an automatic bid. The Fighting Irish can only reach the field through an at-large selection, though they are guaranteed one automatically if they finish inside the committee's top 12.

The Seven At-Large Bids

The remaining seven spots go to the highest-ranked teams left on the board once the automatic qualifiers are set, regardless of conference. That list can include a second, third or even fourth team from a single conference if the committee ranks them high enough, which is why a loaded league can send several teams to the field in the same year.

Seeding and the Four Byes

Once the field is set, the 12 teams are seeded 1 through 12 purely by the selection committee's final ranking, not by automatic-qualifier status. That is a real change from the playoff's first season, when the top four seeds were reserved for the top four conference champions. Since then, the four highest-ranked teams overall get the byes, even if none of them is a conference champion.

The bracket is locked once it is set. There is no reseeding after each round, so a lower seed that pulls off an upset keeps facing the bracket as originally drawn.

Round 1: Seeds 5 Through 12

The first round is where seeds 5 through 12 play each other, all at the home stadium of the higher seed:

These games are played on campus on the third weekend of December, giving fans of lower seeds a true home playoff atmosphere that did not exist before the field expanded.

Quarterfinals and Semifinals: The New Year's Six Bowls

The four first-round winners join the four bye teams (seeds 1 through 4) in the quarterfinals, hosted by four of the sport's New Year's Six bowl games around New Year's Day. The top three seeds get to choose their preferred quarterfinal bowl, in seeding order, and the Rose Bowl always hosts a quarterfinal.

The four quarterfinal winners advance to the semifinals, played at the two remaining New Year's Six bowls at least a week later. Hosting duties rotate among the bowls from year to year, and the top remaining seed again gets a say in which semifinal bowl it plays.

The Championship Game

The two semifinal winners meet in the College Football Playoff National Championship, held at a neutral site chosen through a separate bidding process, at least six days after the semifinals. Host cities need a stadium that seats at least 65,000, and the same city cannot host a semifinal and the championship in the same season.

How the Selection Committee Decides

A 13-member selection committee releases a top-25 ranking every Tuesday during the back half of the regular season. Each week's ranking starts over, so earlier rankings carry no built-in weight. The committee evaluates teams in groups of roughly six at a time and votes by secret ballot until the full field is set.

The committee weighs:

• Strength of schedule, described as one of the most important factors
• Conference championships won
• Overall record and head-to-head results
• Context such as significant injuries

Notably, the committee does not use the AP poll, the Coaches poll or computer rankings. Committee members with a clear conflict of interest, such as a tie to a school still in contention, recuse themselves from that vote.

Format at a Glance

Why It Matters

The expanded field means more teams control their own playoff fate deep into November, and conference championship weekend now carries extra weight since it can decide who gets a bye. For a look at what a Saturday under this new system actually looks like on the ground, see our college football Saturday breakdown. The format also mirrors the increased emphasis on seeding seen in other sports, like the NFL playoff format.

Follow the chase for the bracket all season in our college football coverage.

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