Viewing Copy: 2019 Quantifying Quarterbacks
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Charting Sample: Four games from each player's 2017 (previous) season, as well as all available games vs FBS opponents in 2018. Players with only one year of starting experience were only charted for that season (2018). Red-Green / Green-Red Percentiles (Results-based; comparative on bad vs good basis)White-Blue Percentiles (Volume-based; there is no good or bad, just low or high)
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0%0%0%
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10%10%10%
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20%20%20%
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TRUE ACCURACYWeighted accuracy system based on depth of target. Total adjusted points divided by attempts.

(0 yards = 0.8 points per accurate throw, 1-10 yards = 1 PPAT, 11-15 yards = 1.1 PPAT, 16-20 yards = 1.2 PPAT, 20+ yards = 1.3 PPAT)
30%30%30%
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40%40%40%
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50%50%50%
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60%60%60%
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ADJUSTED RECEPTIONSWhen a quarterback's throw required a receiver to adjust their route or ball-tracking unnecessarily.

Adjustment receptions to accurate throws receive a -0.2 penalty, adjustment receptions to inaccurate throws receive a 0.2 value instead of 0.0.
70%70%70%
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80%80%80%
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90%90%90%
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100%100%100%
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EXPLOSIVE PLAYPlays that result in either a touchdown or a 25+ yard gain (or, of course, both).
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THROWS INSIDE POCKETThrows in which the quarterbacks threw from within the tackle box.

Rollouts, sprintouts, and scrambles all classify as outside of the pocket.
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PRESSURE RATEMeasure of how often a quarterback was pressured.

A pressure can be classified as any hit, hurry, or other circumstance that puts the quarterback in danger before or as they go to throw.
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USAGE RATEPercentage of throws to each designated area of the field.
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