The Statistical Answer - Should Ortiz Have Been Walked?
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by user Alex Holowczak
After reading the pros and cons of walking David Ortiz, I decided to do something I enjoy - a statistical analysis of all the permetations.
Situation
8-6 up, bottom of the ninth.
Runners at first and second. One out. To come: David Ortiz, Manny Ramirez, Mike Lowell
Batters Statistics
- David Ortiz - .283 AVE, .370 OBP
- Manny Ramirez - .314 AVE, .410 OBP
- Mike Lowell - .273 AVE, .339 OBP
Ways Game Can Be Lost
- Hit - Hit
- IBB - Hit - Hit
- Hit - OB - Hit
- Hit - IBB - Hit
- IBB - OB - Hit
- IBB - IBB - Hit
I only went as far as three hitters, because after that, the number becomes insignificantly small. Also, I have no idea who came in after Lowell.
Chance of each combination (3dp)
N.B. Intentional Walks are 1, because you are guaranteed to get on base. Fly outs are (1 - AVE)/2, assuming a player FO and GO equally (I couldn't get stats on that).
- .283 x .314 = .089
- .314 x .273 = .086
- .283 x .410 x .273 = .032
- .283 x .273 = .078
- .410 x .339 = .139
- = .273
Necessary assumptions
- All hits advance each runner one base other than a runner at second, who scores
- No extra-base hits (including Home Runs) are scored
Conclusions
- Walk Ortiz, Pitch to Ramirez and Lowell was a bad way to do it (.139)
- Walking two was even worse (.273)
- The best way was to pitch-walk-pitch (.032)
- Pitching to more batters improves the chances of getting them out
- In this situation there was a 7 out of 10 chance of losing the game
- Walking a hitter made winning chances even more unlikely
Moral of the Story
Pitchers - don't walk batters! Statistics are on your side.
Obviously, this is a severe generalisation, but it gives a fair indication of the right thing to do in this situation. My doing the method suggested, pitch to Ortiz, walk Ramirez (unless the hit scores two), then pitch to Lowell, more often than not, you would not lose the game. N.B. Not losing is different from winning.
This can be taken much, much further, with more statistics available, but I don't think the results will be too much different from those I have shown above.
Please point out any errors I may have made, and I will make an effort to check, and if neccessary, alter them.
Date
Wed 08/02/06, 4:51 am EST
