I used the Wins Probability Added metric (WPA) to help ascertain which players performed in the higher leverage situations. In other words, if the Miami Marlins are winning, 6-0, a plate appearance doesn’t count as much. Conversely, an at bat with two on and two out in the bottom of the 13th has a very high leverage.
There’s something else you need to understand about WPA. Every game has a collective WPA of zero. The winning team will finish with a total of .50, and the losing team will have -.50. As such, it’s not a great predictor of future performance.