Brain Game: AO K XBA

Beyond "BB" (base on balls) and "ERA" (earned run average), some baseball pitching abbreviations are less obvious. Today's Think Thursday mentalfloss.com Brain Game challenge asks you to identify three pitcher-related abbreviations. Good luck!

Per Major League Baseball, identify the
meanings of these three abbreviations
used to designate pitching statistics:

AO
K
XBA

Here are the ANSWERS.
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