Every year, with Derby talk comes the idea that the event “hurts players’ swings” and could potentially be the reason why participants tend to have bad second halves to their seasons. This theory is used to explain the drop-offs in performance from many sluggers. This notably occurred in 2009, when Brandon Inge struggled down the stretch. Inge hit just six home runs (40 wRC+) in the second half, after swatting 21 bombs (128 wRC+) in the first half.
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