I only know how to do it one player at a time: for each, you can go to their baseball-reference.com "game log" page for 2019 and scroll down to the end of the list. Kepler's for example: https://www.baseball-reference.com/players/gl.fcgi?id=keplema01&t=b&year=2019 The team's 75-46 when he plays. Subtract that from the team's 82-51 record, and they are 7-5 when he's out. On that page, you can sort on the Innings column, if you want to manually weed out (or focus on) the times where only a partial game is played - Max is 4-2 in games where he comes in during the game. For most players on the team, you end up with Small Sample Size, so the value is questionable. The value for Buxton is questionable too, but it's a cherry-picker's delight, and I for one am continually delighted by it.