v1.0 runs on one primary data source. Auxiliary sources from the v0.x composite are still synced for metadata but no longer feed the ranking.
| Source | Role | Where it's used |
|---|---|---|
| nflverse · player_stats_season | primary | Every per-season stat line for every NFL skill player back to 1999. The retired-only similarity corpus and the era-pace calibration are built entirely from this file. |
| nflverse · players | primary | Player metadata: positions, birth dates, rookie/last seasons, draft info. Used to filter to skill positions and to compute age. |
| Sleeper API | metadata | Current roster + team for active players. Powers the team column on the rankings page and the league-import flow on /league.html. |
| MyFantasyLeague API | metadata | League-import for MFL leagues. Same overlay engine, just different roster-fetch path. |
| NFL Draft history | metadata | Draft round/pick for current players (shown on player pages). Not in the composite. |
| KeepTradeCut | consensus | Community-driven dynasty rankings. Used only on the Dynasty Rankings tab to diff the model against the crowd — explicitly NOT a model input. Refreshed daily; see CONSENSUS-VS-MODEL.md. |
dynastyprocess db_playerids.csv |
metadata | Free player-id crosswalk maintained by dynastyprocess.
Provides the ktc_id → gsis_id mapping that joins the
KeepTradeCut consensus snapshot to model players. |
v0.x sources (FantasyCalc, DynastyProcess, FantasyPros, Brainy Ballers, FFC ADP, PFF, RAS, NFL Impact, DynastyProcess, etc.) have been removed from the composite. The engine no longer blends external opinions — it produces its own ranking from raw production history. See Methodology.