Suffice it to say that Adam Dunn‘s power has been eerily consistent throughout his career, hitting 40 +/- 2 home runs the past six years with over 100 RBI in five of them. His OBP, walk rate, and strikeout rate were very similar from 2004 to 2009. However, Dunn showed a change in approach last season, reaching career worsts in walk rate (11.9%) and strikeout rate (35.7%) while his OBP was his lowest since 2003 (.356). Granted, that’s still a very good OBP, but his change in approach came with an OBP drop of 40 points since he first joined the Washington Nationals.
Dunn’s swing rate has increased from 40.4% to 45.0%, a career high, showing a more aggressive approach at the plate. Here’s how his other plate-discipline stats changed:
2009: 19.4% O-Swing%, 65.5% Z-Swing%, 73.0% Contact%, 10.7% SwStr%
2010: 28.5% O-Swing%, 68.3% Z-Swing%, 68.2% Contact%, 13.8% SwStr% …
February 4, 2011
FanGraphs on Adam Dunn’s Changed Plate Approach