STARTERS: BPV none on/runners on, 2022

Our research a decade ago showed that there are significant skill differences among pitchers when throwing with the bases empty compared to with runners on base.

This trend continues to hold true. Pitchers have produced a 100+ BPV in five straight seasons with the bases empty, while their skills when pitching with runners on base have been 30% lower.

Full text available to BaseballHQ full subscription subscribers only. Please Subscribe at

Click here to subscribe

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