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Compare two players
Put two players who do the same job side by side. For each stat you see where both rank in the league, and whether the gap between them is bigger than the noise a few plays create.
Grades updated Rechecked every few hours on game days
Las Vegas Raiders · QB
San Francisco 49ers · QBKirk Cousins is clearly ahead on 0 stats, Brock Purdy on 1. 2 are too close to call.
The year so far: EPA per dropback
Where each has ranked among quarterbacks after every week. Solid line is Kirk Cousins, dashed is Brock Purdy.
Stat by stat
EPA per dropback
Brock Purdy is clearly aheadA +0.1512th of 40
−0.19worse to better+0.27B +0.442nd of 40
Success rate
Brock Purdy is slightly aheadA 49%11th of 40
37%worse to better51%B 57%1st of 40
Accuracy over expected
Too close to callA +1.7 pts17th of 38
−3.2 ptsworse to better+6.1 ptsB +4.6 pts11th of 38
Bad throws (lower is better)
Too close to callA 14.9%23rd of 38
19.0%worse to better10.0%B 12.6%14th of 38
Sack rate (lower is better)
Brock Purdy is slightly aheadA 4.5%7th of 40
10.4%worse to better3.7%B 2.1%1st of 40
Style
- Average depth of throwKirk Cousins: 8.3 yds · Brock Purdy: 8.1 yds
- Deep throwsKirk Cousins: 11% · Brock Purdy: 9%
- Play-action dropbacksKirk Cousins: 24% · Brock Purdy: 23%
- BlitzedKirk Cousins: 27% · Brock Purdy: 32%
- Leaves the pocketKirk Cousins: 9% · Brock Purdy: 19%
“Clearly ahead” means the gap is bigger than what the plays behind each number could produce by chance. “Slightly” means it points one way but could still be noise.
Data: nflverse play-by-play, CC BY 4.0. Also FTN charting, Pro Football Reference advanced stats, snap counts and injury reports, all through nflverse. Calculations and charts by Raiders Rundown.
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