Thursday, August 3, 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 updated 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. I added a graph that gives a visual representation of the probability and success each day. The sheet also includes a table that summarizes the length of positive and negative streaks.

First, the Log5 Method picks:

0.344 — Gerardo Parra batting against Rafael Montero
0.330 — Charlie Blackmon batting against Rafael Montero
0.324 — DJ LeMahieu batting against Rafael Montero
0.318 — Nolan Arenado batting against Rafael Montero
0.315 — Jonathan Schoop batting against Matt Boyd
0.314 — Eduardo Nunez batting against Miguel A Gonzalez
0.313 — Trey Mancini batting against Matt Boyd
0.305 — Jose Altuve batting against Blake Snell
0.300 — Jose Abreu batting against Rick Porcello
0.297 — Caleb Joseph batting against Matt Boyd
0.297 — Welington Castillo batting against Matt Boyd

Log5 likes the Rockies against Montero. Montero flies in the face of the idea that a high strikeout rate helps limit hits. Montero strikes out better than a batter per inning, but opponents hang a .369 BABIP on him, leading to a .306 BA allowed.

Here is how the NN with Park ranks the players:

0.344, 0.768 — Gerardo Parra batting against Rafael Montero.
0.305, 0.761 — Jose Altuve batting against Blake Snell.
0.330, 0.759 — Charlie Blackmon batting against Rafael Montero.
0.324, 0.756 — DJ LeMahieu batting against Rafael Montero.
0.314, 0.746 — Eduardo Nunez batting against Miguel A Gonzalez.
0.318, 0.742 — Nolan Arenado batting against Rafael Montero.
0.289, 0.730 — Jean Segura batting against Trevor Cahill.
0.315, 0.729 — Jonathan Schoop batting against Matt Boyd.
0.313, 0.726 — Trey Mancini batting against Matt Boyd.
0.289, 0.721 — Buster Posey batting against Kendall Graveman.

Parra is the unanimous choice, and it might be a good day to double down on Parra and Blackmon.

As always, your best pick will fail to get a hit about 25% of the time.

Here is the daily list of active streaks of plate appearances without a hit, with pitchers eliminated:

Batter PA since Last Hit
John Jaso 42
Michael Freeman 34
Raul Mondesi 23
Aaron Hill 23
Jarrod Saltalamacchia 23
Christopher Herrmann 22
Kyle Higashioka 20
Mark Trumbo 20
Rene Rivera 20
Taylor Featherston 19
Mark Zagunis 18
Jorge Soler 18
Jackie Bradley, Jr. 17
Tony John Wolters 16
Arismendy Alcantara 16
Paul DeJong 16
Paul Janish 15
Chase D'Arnaud 15
Greg Bird 15
Robinson Chirinos 15
Rio Ruiz 15
Wil Myers 14
Jonathan Villar 14
Emilio Bonifacio 14
Yan Gomes 14
Francisco Cervelli 14
Cristhian Adames 14
Dexter Fowler 14
Ryan Schimpf 14
Ryan Zimmerman 13
Yangervis Solarte 13
Stephen Drew 13
Khristopher Davis 13
Chris Coghlan 13
Lewis Brinson 12
Benjamin Gamel 12
Nick Ahmed 12
Avisail Garcia 12
Joc Pederson 12
Luis Valbuena 12
Martin Prado 12
Sean Rodriguez 12
Nolan Fontana 12
Danny Ortiz 11
Kevin Plawecki 11
Josh Harrison 11
Scott Van Slyke 11
Brock Stassi 11
Eddie Rosario 11
Travis Shaw 11
Allen Cordoba 11
Neil Walker 11
Matt Wieters 11
Alex Presley 11
Hanley Ramirez 11
Mikie Mahtook 11
Jared W. Hoying 10
Tyler Collins 10
Jordan Luplow 10
J.D. Martinez 10
Chris Stewart 10
Tom Murphy 10
Yandy Diaz 10
Jabari Blash 10
Luis Sardinas 10
Adrian Gonzalez 10
Carlos Correa 10
Yoan Moncada 10
Jose Altuve 10
JaCoby Jones 10
Todd Frazier 10
Austin Barnes 10

Wow, Jose Altuve and Ryan Zimmerman make the list!

Good luck!



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