Tuesday, May 2, 2017

Beat the Streak Picks

Here are the top picks my programs produced for use in Beat the Streak. This post mostly explains the ideas behind the calculations. In addition, this post shows tests on the Neural Network (NN). This post discusses an NN that includes the ballpark. I recently update the models, and the results of those tests are here.

For 2017, I am just going to publish the Log5 hit averages and the NN probabilities with parks factored in. I am keeping track of the results here.

First, the Log5 Method picks:

0.313 — Dee Gordon batting against Alex Cobb
0.312 — J.T. Realmuto batting against Alex Cobb
0.298 — Justin Turner batting against Matt Moore
0.298 — Daniel Murphy batting against Taijuan Walker
0.295 — Christian Yelich batting against Alex Cobb
0.291 — Martin Prado batting against Alex Cobb
0.288 — Marcell Ozuna batting against Alex Cobb
0.285 — Jedd Gyorko batting against Wily Peralta
0.283 — Yadier Molina batting against Wily Peralta
0.282 — Corey Seager batting against Matt Moore

It’s a good night to bat for the Marlins according to Log5. Since his Tommy John surgery, Alex Cobb allowed a .326 BA and a .362 OBP. With a high number of hits allowed and a low number of walks allowed, Cobb is the perfect pitcher to keep a streak going. Dee Gordon and J.T. Realmuto appear to be the players most likely to take advantage of Cobb’s struggles.

The NN with Park produces this list:

0.298, 0.742 — Daniel Murphy batting against Taijuan Walker.
0.313, 0.730 — Dee Gordon batting against Alex Cobb.
0.312, 0.726 — J.T. Realmuto batting against Alex Cobb.
0.280, 0.715 — Brandon Phillips batting against Matt Harvey.
0.298, 0.714 — Justin Turner batting against Matt Moore.
0.274, 0.713 — A.J. Pollock batting against Tanner Roark.
0.276, 0.712 — Trea Turner batting against Taijuan Walker.
0.260, 0.708 — Jose Altuve batting against Cole Hamels.
0.282, 0.705 — Corey Seager batting against Matt Moore.
0.279, 0.705 — Starlin Castro batting against Mat Latos.
0.270, 0.705 — Jean Segura batting against Matthew Shoemaker.

Once again, Daniel Murphy tops the list. Murphy’s one and three year hit averages are higher than Gordon’s, but Cobbs’s one and three year hit averages are higher than Walker’s. The NN puts more weight on the batter’s side it would appear. Gordon, however, is the consensus choice, as his combined rank in both systems is higher than Murphy’s.

Here is the current list of players with the most PA without a hit.

Batter PA since Last Hit
Jarrod Saltalamacchia 23
Jesus Aguilar 22
Raul Mondesi 20
JaCoby Jones 19
Matt Davidson 18
Michael Freeman 16
Danny Espinosa 15
Kevin Kiermaier 15
Chris Gimenez 15
Mitch Moreland 15
Hunter Renfroe 15
Curtis Granderson 15
Jaff Decker 15
Kyle Higashioka 15
Nick Hundley 15
Greg Bird 15
Cristhian Adames 14
J.J. Hardy 14
Johnny Cueto 14
Ivan Nova 13
Chris Davis 13
Giancarlo Stanton 13
Maikel Franco 12
Patrick Corbin 12
Jhonny Peralta 12
Taylor Motter 12
Leonys Martin 12
Antonio Senzatela 12
Seth Smith 12
Jeremy Hazelbaker 11
Amir Garrett 11
Jose Lobaton 11
Addison Russell 11
Starling Marte 11
Lucas Duda 11
James McCann 11
Jimmy Nelson 11
Jon Lester 11
Nick Ahmed 11
Jaime Garcia 11
Josh Reddick 11
Jackie Bradley, Jr. 11
Matt Harvey 11
Albert Pujols 10
Chris Heisey 10
Zachary Cozart 10
Anthony Rizzo 10
Stephen Strasburg 10
Jeff Samardzija 10
Hernan Perez 10
Scott Feldman 10
Max Scherzer 10
Dan Vogelbach 10
Bronson Arroyo 10
Peter Bourjos 10
Jabari Blash 10

There are some names in that list of batters who might be due.

If you look a the spreadsheet linked about, the NN is doing as expected, with 21 of the 28 players selected recording a hit on the day selected, 75%. That means your best pick will fail to get a hit about 25% of the time. Good luck!



from baseballmusings.com http://ift.tt/2qzzJdz

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