https://www.profootballfocus.com/blog/2012/10/12/signature-stats-snapshot-accuracy-percentage-2/ Take a second and read that article. Quick breakdown: Traditional completion percentage is calculated by taking completions and dividing it by attempts. The problem with this simple formula is that not all incompletions are representative of a quarterback’s accuracy. Drops, throwaways, batted passes, spikes, and plays where the quarterback is hit while throwing are all incompletions that have no bearing on accuracy. So what we here at PFF did was treat those drops like completions and then take away all those other plays from attempts to give a quarterback’s true Accuracy Percentage. The final equation looks like this: PFF Acc. % = (Completions + Drops) / (Attempts – Throw Aways – Spikes – Batted Passes – Hit As Thrown) Locker was 4th in the NFL in PFFs Acc%, behind only RG3, Rogers, & Alex Smith. Best part is Andrew Luck is 32nd. This just shows if we could get slightly better receivers and an improved offensive line Locker can have his breakout year. We did both of those, now Jake has to stay healthy for all 16 games.