http://www.baseballp...p?player=430945
PitchFX says 53.8% of pitches to him this year have been in the zone. I'm trying to find what the overall league percentage is, but having trouble tracking it down.
Still can't find a firm number on this.
Bartolo Colon leads the majors in Zone% this year at 60.5. The lowest is Jason Marquis at 39%. If you sum the Zone% of each of the 97 qualified starters and take the average, that number is 49.37%. If you do the same thing with all 559 pitchers who've appeared at all this season, the average is 48.92%. That's not weighted for innings or anything, just the average of the percentages so the total league average may be a little off, but that's a pretty decent approximation.
The same data source says Jones only gets 43.4% of pitches inside the zone this season, so he is seeing far fewer pitches inside the zone than most hitters, which makes sense given his style and matches what we think we see on a day-to-day basis. That's way different than just adding up the zones from the chart I listed above, but I think I trust this number more, may just be a slightly different zone or something.