Studies
Short, data-driven write-ups on patterns we find across the archive. Every number and chart on these pages is recomputed on each site build — if a player moves leagues or a new season is ingested, the article updates itself. Each study also keeps a snapshot history so you can see how the answer drifts over time.
| Study | Category | Last computed |
|---|---|---|
|
Which leagues feed the NFL?
Cross-league career trajectories of pro football players
|
Football | 2026-05-20 |
|
QB-receiver chemistry that survives league changes
Cross-team-season duos and OL-linked continuity
|
Football | 2026-05-20 |
|
Do NFL-rich locker rooms produce more NFL players?
Teammate-density signals across alt-football team-seasons
|
Football | 2026-05-20 |
|
Football journeymen: two leagues in one year
Non-NFL players who pieced a season together across multiple pro leagues
|
Football | 2026-05-20 |