STARTERS: BPV none on/runners on, 2017

Our research has confirmed that there are significant skill differences among pitchers when throwing with the bases empty compared to with runners on base.

We can show this visually by comparing the skills of pitchers in those two situations over the last five seasons and comparing them with the average overall skills posted by starting pitchers during the same period:

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