• Nobody grading higher without help than Jayden Daniels: Daniels has earned an 86.0 PFF grade in ISO situations, the highest grade in the NFL.
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Estimated reading time: 3 minutes
It’s never too early to start preparing for next season, and for PFF, that means looking at ways to improve PFF Premium Stats. And one way we’re looking to enhance the experience is by introducing more data into the mix.
A few weeks back, we introduced a metric called “QB ISO Percentage,” which looks at which quarterbacks are assisted the most by the offense they play in.
What is QB ISO Percentage?
QB ISO Percentage measures how often a quarterback operates without the benefits of offensive play designs intended to make their job easier. “Help” is defined as:
- Use of motion (standard, ghost, or jet)
- Play action
- Quick-game passing concepts
- RPOs
- Screens
This metric also includes plays nullified by penalties.
While these elements can simplify a quarterback’s task, receiving such assistance doesn’t negatively reflect on a quarterback’s skill. Instead, QB ISO Percentage adds valuable context to how much support a quarterback receives within their offensive system.Here is how the league's quarterbacks have fared so far.
QB ISO PERCENTAGE THROUGH WEEK 7
| Name | Team | ISO Grade | ISO % | ISO Dropbacks |
| Jayden Daniels | Commanders | 86.0 | 33.62% | 77 |
| Derek Carr | Saints | 85.6 | 17.69% | 26 |
| Brock Purdy | 49ers | 81.5 | 32.22% | 87 |
| Joe Burrow | Bengals | 81.3 | 34.81% | 94 |
| Lamar Jackson | Ravens | 74.4 | 30.89% | 76 |
| Baker Mayfield | Buccaneers | 73.5 | 38.14% | 111 |
| Aaron Rodgers | Jets | 73.3 | 37.20% | 109 |
| Trevor Lawrence | Jaguars | 71.3 | 33.20% | 82 |
| Geno Smith | Seahawks | 70.4 | 42.11% | 144 |
| Justin Fields | Steelers | 69.0 | 35.38% | 75 |
| Daniel Jones | Giants | 68.8 | 37.20% | 109 |
| Patrick Mahomes | Chiefs | 68.2 | 22.84% | 53 |
| Kyler Murray | Cardinals | 68.0 | 34.31% | 82 |
| Kirk Cousins | Falcons | 67.4 | 35.23% | 99 |
| Drake Maye | Patriots | 64.7 | 39.42% | 41 |
| Andy Dalton | Panthers | 64.3 | 29.73% | 55 |
| Dak Prescott | Cowboys | 63.6 | 41.79% | 112 |
| C.J. Stroud | Texans | 62.8 | 21.13% | 60 |
| Jordan Love | Packers | 62.5 | 30.58% | 63 |
| Bo Nix | Broncos | 60.6 | 48.58% | 137 |
| Justin Herbert | Chargers | 56.7 | 24.87% | 48 |
| Josh Allen | Bills | 56.2 | 34.04% | 80 |
| Deshaun Watson | Browns | 55 | 35.52% | 103 |
| Jared Goff | Lions | 54.4 | 26.37% | 53 |
| Jalen Hurts | Eagles | 54.3 | 36.97% | 78 |
| Joe Flacco | Colts | 52.9 | 32.80% | 41 |
| Tyler Huntley | Dolphins | 49.2 | 15.38% | 14 |
| Sam Darnold | Vikings | 48.6 | 24.30% | 52 |
| Bryce Young | Panthers | 48.4 | 53.01% | 44 |
| Jacoby Brissett | Patriots | 47.8 | 40.59% | 69 |
| Anthony Richardson | Colts | 47.6 | 39.67% | 48 |
| Caleb Williams | Bears | 46.7 | 39.30% | 101 |
| Will Levis | Titans | 45.9 | 40.63% | 65 |
| Tua Tagovailoa | Dolphins | 45.4 | 16.88% | 13 |
| Gardner Minshew | Raiders | 45.0 | 25.82% | 55 |
| Aidan O'Connell | Raiders | 44.8 | 44.44% | 40 |
| Mason Rudolph | Titans | 44.0 | 39.39% | 26 |
| Matthew Stafford | Rams | 41.9 | 18.94% | 43 |
| Spencer Rattler | Saints | 31.1 | 38.78% | 38 |
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