So far this young season Jon Lester has walked six batters in only 10 IP. While an extremely small sample it's a bit concerning. So far his fastball has been poor according to Fangraphs pitch values with a -2.19 runs per 100 pitches.
One change I see right now is a sinker being classified by Pitch F/x, but that could easily be a slight change from his two-seam fastball.
The one pitch I do see missing is his slider, which was up to 10 percent of his pitches last year. This year though he has yet to throw one according to Pitch F/x.
April 13, 2010
Troy Patterson
