2022

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Run Pass ratio stats show a team’s percentage split between running and passing plays. Because game context often dictates a team’s decision to pass or run, Pass Rate Over Expected (PROE) is also shown.

Positive PROE means that a team threw more than would be expected by an average team in similar situations. Since PROE can be measured across all plays, it’s better than metrics that only look at passing rates in neutral passing situations (like Neutral Down Pass Rate).

Personnel groupings tell us the types of players who were on the field. The first number represents the number of RBs while the second number represents the number of TEs -- 11 Personnel is 1 RB, 1 TE, and 3 WRs, while 12 Personnel is 1 RB, 2 TEs, and 2 WRs.

To help adjust for game context, the distribution here is shown for 1st down plays only. If a team has an 80% for 11 Personnel, this means they ran 11 Personnel on 80% of their 1st downs.

If Personnel tells us which types of players were on the field, Formation tells us how they lined up. The most common formations are Shotgun, Single Back, and I-Form. NFL teams will run a majority of their plays from these sets. Similar to Personnel, Formation stats are only shown for 1st down.

Target depth tells us how far down the field teams threw on average. A team with a 9.1 Average Depth of Target (aDOT) threw the ball 9.1 yards down the field on average.

“Vs Sticks” is similar to aDOT, but also considers how many yards a team needed to gain for first down. A value of -3.5 means that a team threw the ball, on average, 3.5 yards short of the first down marker.

These stats tell us how aggressive a team was on 4th downs and 2 point conversions. A team with a 33% 4th Down rate elected to go for it (ie not punt or kick a field goal) on ⅓ of the 4th downs they faced.

Time and Tempo stats tell us how quickly a team played and how well they controlled the clock. For instance, Clock Used tells us how much of the play clock a team used on average, while Time of Possession tells us how many game minutes a team possessed the ball for.

Plays Per Minute looks at both how much of the play clock a team used and how long each play took to determine how many plays they ran per minute of real-world time (as opposed to game time).

A Gini coefficient is a metric borrowed from economics that tells us the equality of a particular distribution. A GINI of 1 means total inequality, while a GINI of 0 means total equality. In the context of football, a “Target GINI” of 1 would mean that one player received all their team’s targets, while a “Target GINI” of 0 would mean that every player received the same number of targets. GINI Metrics can be thought of as a measurement of how concentrated a team’s play style was.

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