EastCoastAgNc said:
This seems like a very misleading stat.
Astros have scored 597 runs this year of which Bregman has scored 67. That means Bregman has scored 67 runs in 53 games or 1.3 runs per game, when he scores. When he starts and doesn't score that's one spot in the order with zero runs which will artificially lower the expected output.
If you completely take Bregman's scoring away the team drops from 4.6 runs per game down to 4.0. Thus, all else held equal, the difference between him scoring a run and not gives a run differential of 5.3 vs 4.0 which is massive. How big? Prorated for the year the higher average would put the Astros at 695,
no team has scored that many runs so far this year. If you take the lower number you get 530. Only 6 teams have scored fewer runs than that. So treating Bregman scoring a run as a different team is the difference between the 25th best offense in the league and the best offense in the league by far.
I'd be interested to see the same stat on other players. Altuve and Yordan have more runs than Bregman and Pena is tied. I would guess Altuve and Yordan have a bigger impact while Pena is roughly the same.