# PlayerRiskIQ

> PlayerRiskIQ (https://www.playerriskiq.com/) is an independent NFL injury research site. For each player on the official injury report it estimates the chance he misses his team's next game, how much of the offense or snaps that puts at risk, and which teammates take on the work if he sits. Data: nflverse (CC-BY-4.0). Informational only; not affiliated with the NFL.

Key facts for citation:
- Of 3,014 Out listings in 2022–2025, none played.
- Figures on player pages change as the injury report changes; each page shows its update time.
- Team win or score predictions are not published: in a test set up before looking at results, over 1,673 games (2018–2025), adding player availability to a game model did not improve them.

## Main pages

- [Home: NFL injury report tracker](https://www.playerriskiq.com/): Each listed player's chance of missing his team's next game, usage and role impact, and who gains if he sits. Updated about every two hours.
- [Waiver wire](https://www.playerriskiq.com/waiver-wire): Teammates whose share of the work is likely to grow when a listed player sits.
- [Handcuffs](https://www.playerriskiq.com/handcuffs): Running back backups and how much of the work they inherit.
- [Team injuries](https://www.playerriskiq.com/team-injuries): Each team's summed injury impact at risk, as a ranking aid.
- [Guide](https://www.playerriskiq.com/guide): Plain-language explanation of every number on a card, with a worked example.
- [About and methodology](https://www.playerriskiq.com/about): Who runs the site, data, methodology, testing and editorial policy.
- [Data sources](https://www.playerriskiq.com/sources): Data sources, licensing and attribution (nflverse, CC-BY-4.0).
- [Articles](https://www.playerriskiq.com/articles): Editorial articles built on the site data.

## Articles

- [NFL Injury Research: What the Studies Show](https://www.playerriskiq.com/article-nfl-injury-research): Ten published studies on NFL injury rates by position, hamstring re-injury, what Questionable and Doubtful tags mean, and team results, with where our data fits. (updated 2026-10-18)
- [Fantasy Injury Guide: Start/Sit & Waivers](https://www.playerriskiq.com/article-fantasy-football-injury-guide): A walkthrough of real PlayerRiskIQ cards for start/sit calls, waiver and handcuff decisions, trade timing and the Team injuries view. (updated 2026-10-18)

## Optional

- [Full text of methodology and articles](https://www.playerriskiq.com/llms-full.txt)
- [Sitemap](https://www.playerriskiq.com/sitemap.xml)