Waive that flag: Falling into a deep swell? (NFL 2017 week thirteen penalty update)

Something that I had expected might be occurring now seems from the updated numbers like it might, in fact, be occurring, which is that my imperfect flag-rate metric is both (a) continuing to fall and (b) now close to falling out of historic* range. Come look for yourself:

nfl penalty flag data 12-5-17

As a season, 2017 now looks quite close to the prior peaks in 2015 and 2014. If things continue as they have this season, 2017 still will be the high-water mark for penalty flags in the NFL, but the week-to-week trend strongly suggests that that is not a reasonable assumption. That trend also lends some support to the idea that abbreviated preseason training leads to worse play early in the regular season.

Obviously it would be interesting to track flag rates for each of these seasons on a chronological weekly basis. A project for the offseason, perhaps. Meanwhile, since the terrible Giants have been in the news recently, an interesting note that only one team (Carolina) has been flagged fewer times than the 2-10 G-Men.

* The NFL Penalty Tracker has data going back to the 2009 season, but I’m pretty confident that we are witnessing the all-time high-water mark.

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Previously
Good news but bad news (NFL week ten penalty update)
Stability of a kind (NFL week nine penalty update)
People are noticing (NFL 2017 week eight penalty update)
Is this still a thing? (NFL 2017 week seven penalty update)

Alberto’s favorite things (NFL 2017 week three penalty update)
NFL week two penalty update (2017)

The NFL returns with zebras on parade

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