D-trains WAR and win projections

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D-train
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Re: D-trains WAR and win projections

Post by D-train » Tue Jan 04, 2022 6:43 pm

Captain 97 wrote:
Tue Jan 04, 2022 5:26 pm
Yeah you were closer in wins but not because your WAR predictions were better. It was because the M's wins drastically over performed their WAR.

Not sure who "They" is but they actually nailed the WAR.

The M's had 11.5 fWAR from the position players and 14.3 fWAR from the pitchers.
I knew Sewald, Steck and Sadler would kick ass. Not to mention SS adding his 10-12 managerial wins. :)
dt

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gil
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Re: D-trains WAR and win projections

Post by gil » Tue Jan 04, 2022 7:25 pm

D-train wrote:
Tue Jan 04, 2022 6:43 pm
Captain 97 wrote:
Tue Jan 04, 2022 5:26 pm
Yeah you were closer in wins but not because your WAR predictions were better. It was because the M's wins drastically over performed their WAR.

Not sure who "They" is but they actually nailed the WAR.

The M's had 11.5 fWAR from the position players and 14.3 fWAR from the pitchers.
I knew Sewald, Steck and Sadler would kick ass. Not to mention SS adding his 10-12 managerial wins. :)
Good to see SS getting some credit here. ;)

A conceptual problem I see with the use of WAR and similar statistics: There are two underling assumptions, (1) a team's performance is the sum of individual performance, and (2) WAR represents an individual's contribution to the team. Obviously the Ms outperformed WAR and pythagorean win-loss. I don't think that these stats account for situational performance, such as a reliever holding a one run lead in the 7th inning (as opposed to pitching a scoreless ninth in a blowout). Or a Kyle Seager (for example) going 1 for 4 with 3Ks and a bottom of the ninth single that advances a runner, versus 1 for 4 with a meaningless single in the first.

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D-train
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Re: D-trains WAR and win projections

Post by D-train » Tue Jan 04, 2022 7:51 pm

gil wrote:
Tue Jan 04, 2022 7:25 pm
D-train wrote:
Tue Jan 04, 2022 6:43 pm
Captain 97 wrote:
Tue Jan 04, 2022 5:26 pm
Yeah you were closer in wins but not because your WAR predictions were better. It was because the M's wins drastically over performed their WAR.

Not sure who "They" is but they actually nailed the WAR.

The M's had 11.5 fWAR from the position players and 14.3 fWAR from the pitchers.
I knew Sewald, Steck and Sadler would kick ass. Not to mention SS adding his 10-12 managerial wins. :)
Good to see SS getting some credit here. ;)

A conceptual problem I see with the use of WAR and similar statistics: There are two underling assumptions, (1) a team's performance is the sum of individual performance, and (2) WAR represents an individual's contribution to the team. Obviously the Ms outperformed WAR and pythagorean win-loss. I don't think that these stats account for situational performance, such as a reliever holding a one run lead in the 7th inning (as opposed to pitching a scoreless ninth in a blowout). Or a Kyle Seager (for example) going 1 for 4 with 3Ks and a bottom of the ninth single that advances a runner, versus 1 for 4 with a meaningless single in the first.
Yes, interestingly the WAR and Pythag were in line but reality was not. It would be interesting to see if WAR or Pythag was more closely correlated with actual wins across all teams. I would think pythag would be a better indicator but who knows.
dt

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gil
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Re: D-trains WAR and win projections

Post by gil » Thu Jan 06, 2022 3:20 pm

D-train wrote:
Tue Jan 04, 2022 7:51 pm
gil wrote:
Tue Jan 04, 2022 7:25 pm
D-train wrote:
Tue Jan 04, 2022 6:43 pm


I knew Sewald, Steck and Sadler would kick ass. Not to mention SS adding his 10-12 managerial wins. :)
Good to see SS getting some credit here. ;)

A conceptual problem I see with the use of WAR and similar statistics: There are two underling assumptions, (1) a team's performance is the sum of individual performance, and (2) WAR represents an individual's contribution to the team. Obviously the Ms outperformed WAR and pythagorean win-loss. I don't think that these stats account for situational performance, such as a reliever holding a one run lead in the 7th inning (as opposed to pitching a scoreless ninth in a blowout). Or a Kyle Seager (for example) going 1 for 4 with 3Ks and a bottom of the ninth single that advances a runner, versus 1 for 4 with a meaningless single in the first.
Yes, interestingly the WAR and Pythag were in line but reality was not. It would be interesting to see if WAR or Pythag was more closely correlated with actual wins across all teams. I would think pythag would be a better indicator but who knows.
I just did a very quick look because I read your note and thought "this IS an empirical question!" And I can't help myself. :geek:

Correlations (all thirty teams)
WAR with winning percentage: 0.929883762
Pythag with winning percentage: 0.941471741
WAR with pythag: 0.985366179

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D-train
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Re: D-trains WAR and win projections

Post by D-train » Thu Jan 06, 2022 5:15 pm

Wow thanks for doing that. Fascinating and exactly what I expected
dt

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