Each one against every quarterback with at least 40 dropbacks. Right on the strip is better.
EPA per dropback
▼Among the weakest−0.33
39th of 40 quarterbacks · bottom 5%
−0.19worse to better+0.27
Expected points added: how many points the play added to (or took from) the offense's scoring chances, given the down, the distance and the field position. Sacks, scrambles and throwaways all count, so it is everything he does when he drops back, not just the completions.
The box score: Passing yards and touchdowns ignore down, distance and sacks, so a 6-yard checkdown on 3rd-and-12 looks like a good play.
Does it show up in winning? Across 151 games league-wide, teams won 84% of the time when their quarterback was in the best third on EPA per dropback, and 28% when he was in the worst third.
Success rate
▼Among the weakest34%
39th of 40 quarterbacks · bottom 5%
How often a dropback gains enough to keep the offense on schedule: about 40% of the yards needed on first down, 60% on second, all of them on third and fourth.
The box score: Yards per attempt cannot tell a gain that helped from one that did not.
Does it show up in winning? Across 151 games league-wide, teams won 74% of the time when their quarterback was in the best third on success rate, and 36% when he was in the worst third.
Accuracy over expected
▼Below typical+0.1 pts
26th of 38 quarterbacks · bottom 35%
−3.2 ptsworse to better+6.1 pts
His completion rate compared with what each throw was expected to be, given depth, pressure and where the receiver was. +3 means he completes 3 more of every 100 throws than an average passer would on the same throws.
The box score: Completion percentage rewards the quarterback who throws short and punishes the one who throws deep.
Does it show up in winning? Across 145 games league-wide, teams won 70% of the time when their quarterback was in the best third on accuracy over expected, and 31% when he was in the worst third.
Bad throws
▼Well below typical17.6%lower is better
31st of 38 quarterbacks · bottom 22%
19.0%worse to better10.0%
The share of his attempts that Pro Football Reference's charters called a bad throw: off target, not just incomplete. Fewer is better.
The box score: An incompletion also blames him for a drop or a throwaway.
Does it show up in winning? Across 124 games league-wide, teams won 66% of the time when their quarterback was in the best third on bad throws, and 39% when he was in the worst third.
Sack rate
▼Among the weakest12.0%lower is better
39th of 40 quarterbacks · bottom 5%
Sacks as a share of his dropbacks. It is the quarterback and the line together. Fewer is better.
The box score: A sack total depends on how often he drops back.
Does it show up in winning? Across 151 games league-wide, teams won 55% of the time when their quarterback was in the best third on sack rate, and 37% when he was in the worst third.
