Monday, January 9, 2017

Deflategate follow up: Game charts for all 30 NBA teams

In my NBA deflategate analysis, I shared charts for several teams that showed game by game coefficient of restitution for home games. Coefficient of restitution is a measurement of the ball's "bounciness". The point was to see if there is evidence of certain teams either over or under inflating their game balls.

As I called out in that post, there is no clear evidence of cheating in the data, but there do appear to be home teams that show a clear bias to one end of the bounciness range. You can see for yourself in the charts below which teams those are.

Each red dot represents a home game for the particular team. The gray dots are all NBA games for which I have data, and help provide context as to whether a team is an outlier.

































5 comments:

  1. Awesome work. It might be interesting to dig into the differences between the Lakers and Clippers, since they share the same floor (I believe).

    ReplyDelete
    Replies
    1. The Clippers and Lakers play in the same arena, but not on the same floor. The floor gets switched between home games for the Kings (ice hockey), Clippers, and Lakers.

      Delete
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