Phillies Win on Walk-Off Catcher's Interference

[Lindsay]

A walk-off win due to catcher's interference in Philadelphia left some Boston fans perplexed as Phillies batter Edmundo Sosa's bat made contact with Red Sox catcher Carlos Narváez during a 2-2 pitch, HP Umpire Quinn Wolcott announcing Replay Review's verdict over the stadium PA much to the delight of the home crowd. Because the bases were loaded at the time of the interference, all runners advanced and the tied game ended in the 10th inning.

Catcher's interference is defined more broadly as defensive interference in the Official Baseball Rules: "an act by a fielder that hinders or prevents a batter from hitting a pitch." In high school (NFHS), catcher's interference is called catcher's obstruction, as NFHS defensive interference is specifically an act that occurs prior to the pitch.

OBR 6.01(c) specifies the penalty for catcher's interference: "The batter becomes a runner and is entitled to first base without liability to be put out (provided they advance to and touches first base) when the catcher or any fielder interferes with them."

It is a rules myth that the batter must actually legitimately swing for catcher's interference to be called. For instance, catcher's interference also occurs when a catcher steps on or across home plate prior to the pitch's arrival, whether or not the batter actually swings at the pitch. Instead, catcher's interference occurs when the catcher's physical positioning (of body and/or glove/mitt) deprives the batter of the opportunity to choose whether to swing or not.

Because batter Sosa is said to have been deprived of this freedom of choice by virtue of the bat-mitt contact, the Replay Official overturned the on-field no-call and awarded the interference penalty, resulting in a walk-off win.

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Alternate Link: Boston loses on catcher's interference walk-off with bases loaded in extra innings

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