Tuesday, August 29, 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:

0.360 — Eduardo Nunez batting against Brett Anderson
0.355 — Jose Altuve batting against Martin Perez
0.333 — Daniel Murphy batting against Vance Worley
0.331 — Howie Kendrick batting against Vance Worley
0.331 — Christian Vazquez batting against Brett Anderson
0.327 — Xander Bogaerts batting against Brett Anderson
0.314 — Mookie Betts batting against Brett Anderson
0.313 — Buster Posey batting against Luis Perdomo
0.311 — Yulieski Gurriel batting against Martin Perez
0.311 — Rafael Devers batting against Brett Anderson

The Log5 method likes the Red Sox against Brett Anderson. The system may be understating how bad Anderson is a bit, since he’s been knocked around the last two years without having pitched much.

Here is how the NN with Park ranks the players:

0.355, 0.784 — Jose Altuve batting against Martin Perez.
0.360, 0.771 — Eduardo Nunez batting against Brett Anderson.
0.333, 0.761 — Daniel Murphy batting against Vance Worley.
0.331, 0.744 — Howie Kendrick batting against Vance Worley.
0.327, 0.738 — Xander Bogaerts batting against Brett Anderson.
0.280, 0.737 — Charlie Blackmon batting against Michael Fulmer.
0.331, 0.732 — Christian Vazquez batting against Brett Anderson.
0.280, 0.731 — Gerardo Parra batting against Michael Fulmer.
0.313, 0.728 — Buster Posey batting against Luis Perdomo.
0.311, 0.727 — Yulieski Gurriel batting against Martin Perez.

It’s an extremely similar list, with Altuve and Nunez the consensus 1-2 choices.

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
Michael Freeman 34
Mike Trout 25
Arismendy Alcantara 24
Tony John Wolters 24
Raul Mondesi 23
Jarrod Saltalamacchia 23
Aaron Hill 23
Kyle Higashioka 20
Tyler Flowers 19
Sean Rodriguez 19
Taylor Featherston 19
Allen Cordoba 18
Mark Zagunis 18
Mitch Haniger 18
Jorge Soler 18
Joey Gallo 16
Freddie Freeman 16
Steve Pearce 16
Ehire Adrianza 16
Joey Votto 15
Michael Moustakas 15
Paul Janish 15
Rio Ruiz 15
Chase D'Arnaud 15
Ryan Schimpf 14
Abraham Almonte 14
J.T. Realmuto 14
Mike Napoli 14
Nick Delmonico 14
Cristhian Adames 14
Emilio Bonifacio 14
Chris Taylor 14
Francisco Cervelli 14
Carlos Asuaje 14
Stephen Drew 13
Alcides Escobar 13
Ryan Braun 13
Chris Coghlan 13
Juan Graterol 13
Denard Span 13
Lewis Brinson 13
Jay Bruce 13
Pablo Sandoval 13
Brock Holt 12
Miguel Rojas 12
Daniel Robertson 12
Eric Thames 12
Nick Ahmed 12
Nolan Fontana 12
Jose Osuna 12
Kyle Schwarber 12
Martin Prado 12
Erik Gonzalez 12
Rougned Odor 11
Manuel Margot 11
Brock Stassi 11
Jordan Luplow 11
Adam Duvall 11
Curtis Granderson 11
Danny Ortiz 11
Scott Van Slyke 11
Tom Murphy 10
Jose Iglesias 10
Jared Hoying 10
Carlos Correa 10
Keon Broxton 10
Dominic Smith 10
Luis Sardinas 10
Tyler Collins 10

Good luck!



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