|Joe Nathan said after Wednesday's game|
that it was so cold and dry in
Yankee Stadium "it was like
throwing ice cubes."
I assume the pitch data that shows up on my iPad comes from the "Pitch f/x" system, a computerized, multi-camera system that purports to chart in detail every major league pitch — not just velocity and location but movement and release point and a truly bewildering mass of information.
Anyway, something odd kept popping up on my feed in the 10th inning: Nathan was throwing fastballs consistently clocked at 90 to 91 mph. He was also mixing in what the feed called changeups clocked at the same velocity.
Inasmuch as the point of the changeup is that it's a slower pitch, that's nonsensical. Stephen Strasburg, before his injury last summer, was showing a 90-mph change, but he also was touching 100 mph with the fastball.
One glitch, OK; multiple readings with the same error suggest something's faulty in the system. Perhaps the system is categorizing the pitch as a changeup based not on velocity but movement, in which case it may be that Nathan has a fastball that sinks and moves in on a right-handed hitter. Maybe the velocity readings were flawed for reasons I don't understand.
And maybe the only thing that really matters is that on a chilly night in Yankee Stadium, Nathan was much, much sharper than he was two nights earlier in Toronto.