Data rights and attribution
Last updated August 9, 2026
The Kneeldown filters, normalizes, joins, aggregates, and reformats the source records described below.
| Material | Source and terms | Changes |
|---|---|---|
| Fantasy ADP | Fantasy Football Calculator REST API | Cached no more than daily; filtered by format; identifiers normalized; ranks and draft slots derived. |
| Play-by-play, rosters, schedules, historical reports | nflverse-data · CC BY 4.0 | Filtered, normalized, joined, aggregated, and reformatted. |
| FTN charting and 2023+ participation | FTN Data via nflverse · CC BY-SA 4.0 | Joined to play-by-play and converted to descriptive scheme and situation summaries. |
| Participation through 2022 | NFL NextGenStats via nflverse · CC BY-SA 4.0 | Joined to play-by-play and converted to descriptive route, coverage, and personnel summaries. |
| Expected fantasy opportunity | ffverse/ffopportunity · CC BY-SA 4.0 | Components aggregated and fantasy scoring recomputed for the selected format. |
Displayed and downloaded adaptations derived from CC BY-SA material are offered under CC BY-SA 4.0. This applies to the FTN, participation, and ffopportunity-derived data portions, not independently authored application code.
Excluded material and independence
- FantasyPros consensus rankings are not fetched, stored, displayed, or exported.
- NFL-hosted player portraits and official league/club/ESPN-hosted logos are not displayed or transformed.
- Historical injury-report labels are not diagnoses, causes, recurrence forecasts, verified games missed, or current status.
The Kneeldown is independent and is not affiliated with, sponsored by, or endorsed by the NFL, NFLPA, any NFL club, or any named data provider. Player, team, and provider names identify factual data and its source.
Rights questions: ryweis1@outlook.com.