Jered Weaver's Big Slider

Jered Weaver was very efficient at keeping batters off the bases last season.  His OBP against of .267 was the second best among all major league starters throwing a minimum 500 plate appearances.  Weaver's off speed pitches, specifically his slider, were a big part of his success.

Jered Weaver's Slider, 2010 (Click to enlarge)

Weaver's slider had more horizontal movement than any other right-handed major league slider last season.  It averaged 9.4 feet per second of right to left movement when crossing the plate, more than a half a foot of movement more than the next slider on the list.

When Weaver's slider averaged more than 8 feet per second of movement last year, batter's managed to hit only .207 and slug .269.  When it's movement dropped below 8 feet, batter's hit .250 and slugged .500.