Originally Posted by buckeyenut
Fabulous work, Cyclone.
It would be an interesting analysis to see if players "learn" plate discipline over time. Can they really get noticably better at this?
Another interesting look would be at a guy like Vlad, who is known to swing at everything.
I cannot say enough what an interesting read that was. Thank you Cyclone for taking the time.
Thanks, buckeye. TangoTiger's got some interesting stuff up on aging patterns.
Anyway, hitters always improve their walk ratio, they strikeout the least at age 29, get their best HR ratio at age 27, their balls in play success goes down almost instantly, their line drive power stays pretty flat for a long period of time, their speed as measured by triples goes down instantly, their speed as measured by SB peaks at 24 and goes down almost at the same rate as the triples.
The key would be determining how much walk rate correlates with also getting into hitter counts/avoiding pitcher counts. My gut tells me there's at least some decent correlation, if not a strong one, but I have no idea if the actual data would back up that guess. Another way to examine whether it increases with age along with BB rate is to examine season-by-season data for guys such as Bonds, Thomas, Griffey and other hitters who have played for several years and that we have several years worth of hitting by count data for.