Ian York has examined the evolving strike zone since 2008 and found some interesting changes to keep an eye on during the 2015 season.
Umpires expand or contract the always changing strike zone. Examining PITCHf/x data, Ian York visualizes how big the zone gets 3-0 and how small it is 0-2.
Ian York demonstrates umpire strike zones can be tracked, contrasted and compared across baseball through scientific data analysis of PITCHf/x data.
Teams are always looking for competitive advantages. The Red Sox catcher framing with Christian Vazquez, Ryan Hanigan, & Sandy Leon may be a big one.