RESEARCH: Updating xBA

Over the last few years, we have spent a lot of time in this space discussing the new hard-hit ball data that is available on BaseballHQ.com. One of the main advantages of using hard-hit ball data is that it better measures a fundamental skill, rather than a result that may be influenced by events outside of the batter's control.

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  For more information about the terms used in this article, see our Glossary Primer.