Mark Reynolds of the Baltimore Orioles shows a huge difference between his batting average and slugging percentage. He hits .220, but slugs .482. If you think of this in terms of bases per hit, his average hit is better than a double at 2.2 Bases/Hit.
Mark achieves this dubious distinction by trying to pull everything. On inside pitches, that's expected:
Note that very few of his hits go the other way. Four of those hits came on weak ground balls that he pulled down the third base line and beat out. The following table summarizes his batting on various sections of the plate:
|Mark Reynolds, 2011||Inside||Middle||Outside|
|Ground Ball %||30.5||40.7||45.3|
Note that Mark hits his best on balls over the middle of the plate. He slugs extremely well middle in, but his only strength on the outside part of the plate comes from drawing walks. The ground ball line tells a big part of the story. Trying to pull those outside pitches results in weak contact and tons of ground balls. Reynolds probably won't change his swing at this point, but he might be better off laying off those pitches as much as possible.