College Football Playoff
Bracket Builder
Defaulting to the current 12-team CFP. Build, auto-fill, and share brackets entirely through URL parameters—no persistence or accounts.
FormatOfficial + experimental
SeasonSelect ranking season
Ranking sourceAuto-fill source
Seeds
Click a seed to activate swap.
First Round4 games
OpeningFR1
FR2
FR3
FR4
Quarterfinals4 games
Round 2QF1
QF2
QF3
QF4
Semifinals2 games
Round 3SF1
SF2
Championship1 games
Round 4CFP
First Round
Round first_round
FR1
FR2
FR3
FR4
Quarterfinals
Round quarterfinals
QF1
QF2
QF3
QF4
Semifinals
Round semifinals
SF1
SF2
Championship
Round championship
CFP
Champion
Winner of Championship
Pick winners to crown a champion.
Team search & swap
Choose a seed slot then click a team to assign it.
CFP (12-Team, Current)
Format rules & notes
- 12 teams; seeding: straight ranking
- 6 auto-bids (highestRankedConferenceChamps)
- 6 at-large bids
- 4 byes: 1, 2, 3, 4
- Straight seeding with top four byes. No reseeding after the first round. Auto-fill prefers CFP Rankings when available.
Validation
ReadyWarnings
- Only 0 of 12 seeds are filled.