Last year, I tinkered around with several metrics to arrive at PHAMwOBA, a catch-all figure designed to evaluate hitters’ underlying level of success at the plate. To understand the rationale behind the stat I highly recommend that you read over the original article before proceeding (I really do mean that as my summary of it in this post is incredibly brief), but PHAMwOBA at its core takes three factors into account: quality of contact, a player’s speed, and the home ballpark he plays in. The former two are calculated using Statcast metrics–expected weighted on-base average (xwOBA, which looks at a batter’s launch angle and exit velocity numbers) and sprint speed–while I used FanGraphs’ park factors for the latter.
Revisiting a new stat to evaluate hitters
