Beat40 said:
Buck Compton said:
There is data on increasing the odds of scoring one and only one. I'll have to look it up. AgLA06 is correct. No way for us to know what it actually does to run expectancy. And bunting run expectancy stats already account for failures to sacrifice.
But really the complicating factor here is Maldonado. The odds for all of this change when you look at his stat line and contact rates. Same with whoever is hitting behind him at the time. Or has to do with how well he is seeing the ball, facing a lefty or righty, or how well he does against that pitcher. Or if the in-game situation only calls for needing one run.
I'm not saying one way or the other, because Dusty wasn't using those stats anyway. But your bunt run expectancy stats are all very general. The reason a team like the Astros have such highly regarded analytics departments are because they have the data and get very SPECIFIC with their stats. Not just with spin rates and data like that, but with very specific scenarios.
Genuinely, I hope you can show me that data set. I have searched and have not found it for scoring one and only one run. I'm glad to be wrong if it's the case that bunting a guy from 2nd to 3rd in favor of an out for the purpose of scoring one run only has a higher run expectancy than playing normal with a guy on 2nd with 0 outs. I've looked all over and haven't every seen that to be the case.
Ok. Math time.
I kept it simple. The situation is 1st and 2nd, 0 outs. That RE for at least 1 run is .636. So your chances of scoring at least 1 run is 0.636. The same 1st and 2nd with 1 out is .428. So getting an out that does nothing is to be avoided, The successful sac bunt does something.
I used our success sac bunt % of 14/19.
5/19 of the time you are unsuccessful as a bunter. I will take that as your bunt was an out and it was so bad they got the lead runner, leaving 1st and 2nd but now 1 out. Yes it could be a double play, lets ignore that. The RE for 1 out, 1st and 2nd is .428
14/19 of the time you are successful and thats moving runners to 2nd and 3rd with now 1 out. You could be super successful and have bases loaded and 0 outs, but its Machete wee are using so ignore that. The RE of 2/3 and 1 out is .68.
So the combined RE of scoring at least 1 run is: (.428)(5/19) + .(.68)(14/19) = .613
You gave up an out and increased your chances of scoring at least 1 run from .428 to .613. It looks good. But before you batted it was .636 and that takes every outcome including a sac bunt into account. One you know you are giving up an out its better. If you dont know what you are going to do it is worse. Bayesian statistics says give up the out.
That does take into account the possibility of a DP, which makes things really worse.
ETA: if we were slightly more successful bunting (like one more "success" on 19 sac attempts, it would make this strategy an auto decision. Our 14/19 success % is right at the decision point of making this a no brainer.