Regression Candidate's analytics, projections, and rankings incorporate publicly available NFL data assembled by the nflverse open-data project and its contributors. We are grateful for their work and committed to honoring the open-license terms under which that data is shared. This page constitutes the required attribution notice for those materials.
The nflverse project is a collection of open-source R and Python packages that aggregate and distribute NFL play-by-play, roster, player statistics, and related data. The data is maintained by a community of contributors and is made freely available under Creative Commons licenses.
| Dataset / Package | License | Source / Repository |
|---|---|---|
| nflverse data (general) — play-by-play, rosters, player stats, schedules, participation, etc. | Creative Commons Attribution 4.0 International (CC BY 4.0) CC BY 4.0 | github.com/nflverse |
| FTN charting data (Next Gen Stats–style route/coverage charting sourced via Football Outsiders / FTN Data, distributed through nflverse) | Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) CC BY-SA 4.0 | github.com/nflverse/nflverse-data |
| nfl_data_py & nflreadr (Python / R package code) | MIT License MIT |
github.com/nflverse/nfl_data_py github.com/nflverse/nflreadr |
The nflverse project is maintained by Sebastian Carl, Ben Baldwin, and a broader community of open-source contributors. Full contributor lists are available in the respective GitHub repositories linked above.
Under the CC BY 4.0 license, we are permitted to use, reproduce, and adapt the data for commercial purposes provided that we:
- give appropriate credit to the nflverse contributors (satisfied by this page and in-product notices);
- provide a link to the license; and
- indicate if changes were made.
The analyses, models, rankings, and projections produced by Regression Candidate represent original creative and analytical work derived from underlying factual data. Raw statistical facts are not protectable by copyright (Feist Publications v. Rural Telephone Service, 499 U.S. 340 (1991)); our proprietary content consists of the original selection, weighting, and presentation of insights built on top of those facts.
The FTN charting data distributed through nflverse carries a CC BY-SA 4.0 (ShareAlike) license. The ShareAlike condition applies to Adapted Material — that is, material that constitutes a copyrightable adaptation of the original dataset. Where Regression Candidate uses FTN data as an input to original statistical models that produce new, separable outputs (projections, efficiency scores, rankings), those outputs are not “Adapted Material” within the meaning of CC BY-SA 4.0 and are not required to be shared under the same license.
However, any direct reproduction or minimally transformed redistribution of the FTN charting data itself would require a CC BY-SA 4.0 license. Regression Candidate does not currently redistribute the raw FTN charting dataset to end users.
The nfl_data_py and nflreadr package code (not the data) is licensed under the MIT License, which imposes no restrictions on commercial use beyond preserving the copyright notice in derivative source code distributions. Regression Candidate uses these packages as software libraries and is in full compliance.
Regression Candidate may also incorporate data from the following sources. This section will be updated as additional data partnerships or integrations are established.
| Source | Nature of Use | License / Terms |
|---|---|---|
| NFL.com public statistics (play-by-play, box scores) | Factual game data ingested via nflverse pipeline | Factual data not independently copyrightable; accessed via nflverse |
| Additional sources to be listed here as integrated | — | — |
Regression Candidate is built with open-source software. A complete list of software dependencies and their licenses is available upon written request at legal@regressioncandidate.com.
If you believe we have failed to provide required attribution for a data source, or if you have questions about our licensing compliance, please contact us at legal@regressioncandidate.com.