Ninety seasons of an imagined playoff that began in 1936 and expanded as conferences rose to power — seeded from the real final regular-season AP Poll, with automatic berths for major-conference champions.
| # | School | Berths | Years |
|---|
This is a thought experiment: what if college football had used an expanding, bracketed playoff since the very first AP Poll in 1936? Each season's field is seeded directly from the real final regular-season AP Poll, with one twist — the champion of every recognized major conference receives an automatic berth, even if they finished unranked. The remaining spots are wild cards, filled by the highest-ranked available teams.
It starts at 12 teams in 1936 and adds two seats (a champion plus a wild card) each time a new conference is recognized as major. When a conference simply replaced another, the field size held steady.
| Seasons | Field | Change |
|---|---|---|
| 1936–1952 | 12 | Founding six: PCC (Pac), Western/Big Ten, Big Six, SWC, SEC, Southern |
| 1953–1965 | 12 | ACC replaces the Southern Conference |
| 1966–1967 | 14 | + WAC |
| 1968–1975 | 16 | + MAC |
| 1976–1980 | 18 | + Southland |
| 1981–1990 | 18 | Big West replaces the Southland |
| 1991–1995 | 20 | + Big East |
| 1996–1998 | 20 | Conference USA replaces the SWC |
| 1999–2000 | 22 | + Mountain West |
| 2001–2008 | 22 | Sun Belt replaces the Big West |
| 2009–2025 | 24 | Field expands to 24 — two extra at-large wild cards |
When a conference had co-champions or a tie in the standings, a single champion is chosen using a consistent tiebreaker ladder — as if every conference used the same rules instead of coin tosses or member votes:
In this reconstruction, historical co-champions are resolved to the team ranked higher in that year's final AP Poll, which serves as a consistent, defensible proxy for on-field strength / head-to-head outcome. Every such resolution is noted on the affected season.
Even as real college football realigned dramatically, this project keeps the original slate of conference "slots." Each slot maps to whatever conference carries its lineage: the Big East slot becomes the American Athletic Conference from 2013, and the Pac slot is marked unavailable for 2024–2025 after the Pac-12's collapse (its seat becomes an extra wild card, preserving the 24-team field).
In those years the AP Poll ranked only a Top 10. Combined with the conference champions, a few of those brackets fall one or two teams short of a full field — this is faithful to what data actually existed, rather than inventing rankings.
All rankings come from the final regular-season AP Polls and all champions from conference-season records, compiled from Wikipedia's season and rankings pages (e.g. "[Year] NCAA … football rankings" and "[Year] NCAA … football season"). Seeding, auto-berths, and tiebreaks are then applied programmatically by this project.