Tuesday, September 12, 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:

0.330 — Eric Hosmer batting against Dylan Covey
0.328 — Elvis Andrus batting against Marco Gonzalez
0.322 — Jose Ramirez batting against Matt Boyd
0.321 — Adrian Beltre batting against Marco Gonzalez
0.318 — Lorenzo Cain batting against Dylan Covey
0.316 — Melky Cabrera batting against Dylan Covey
0.315 — Whit Merrifield batting against Dylan Covey
0.314 — Dee Gordon batting against Nick Pivetta
0.304 — Austin Jackson batting against Matt Boyd
0.302 — Albert Almora batting against Robert Gsellman

Eric Hosmer is hot, and Dylan Covey allowed a .330/.403/.655 slash line this season, with 17 home runs allowed in 49 innings. This is also a rare Tuesday afternoon game, so if you are going to take Hosmer you need to get your pick in early. Note also that Jose Ramirez came out of last night’s Cleveland game with an injury, although it did not appear serious.

Here is how the NN with Park ranks the players:

0.295, 0.752 — Jose Altuve batting against Garrett Richards.
0.330, 0.743 — Eric Hosmer batting against Dylan Covey.
0.314, 0.742 — Dee Gordon batting against Nick Pivetta.
0.328, 0.740 — Elvis Andrus batting against Marco Gonzalez.
0.292, 0.740 — Charlie Blackmon batting against Taijuan Walker.
0.322, 0.739 — Jose Ramirez batting against Matt Boyd.
0.289, 0.737 — Daniel Murphy batting against Julio Teheran.
.294, 0.734 — Eduardo Nunez batting against Sean Manaea.
0.318, 0.733 — Lorenzo Cain batting against Dylan Covey.
0.316, 0.729 — Melky Cabrera batting against Dylan Covey.
0.282, 0.729 — DJ LeMahieu batting against Taijuan Walker.

The NN does a better job of smoothing out the small sample size noise of Dylan Covey, with Altuve popping to the top of the list. Hosmer is the consensus first choice.

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
Arismendy Alcantara 24
Jarrod Saltalamacchia 23
Aaron Hill 23
Jayson Werth 23
Jorge Soler 22
Allen Cordoba 21
Kyle Higashioka 20
Taylor Featherston 19
Yasmani Grandal 19
Corey Dickerson 19
Mark Zagunis 18
Jake Marisnick 18
Josh Donaldson 16
Paul Janish 15
Chase D'Arnaud 15
Miguel Montero 14
Yonder Alonso 14
Logan Morrison 14
Cristhian Adames 14
A.J. Ellis 14
Jared Hoying 14
Ryan Schimpf 14
Elias Diaz 14
Emilio Bonifacio 14
Francisco Cervelli 14
Tom Murphy 14
Stephen Drew 13
Nolan Fontana 13
Lewis Brinson 13
Cesar Puello 13
John Jaso 13
Adam Duvall 13
Seth Smith 13
Chris Coghlan 13
Evan Gattis 12
Gavin Cecchini 12
Jarrod Dyson 12
Chase Utley 12
Nick Ahmed 12
Eric Sogard 12
Martin Prado 12
Jacob Lamb 12
Jorge Polanco 12
Daniel Robertson 12
Alex Mejia 12
Joc Pederson 12
Dexter Fowler 12
Danny Ortiz 11
Freddy Galvis 11
Kaleb Cowart 11
Drew Butera 11
Cameron Maybin 11
Jett Bandy 11
Joey Gallo 11
Jorge Alfaro 11
Brian Dozier 11
Ryan McMahon 11
Stephen Vogt 11
Marcus Semien 11
Brock Stassi 11
Scott Van Slyke 11
Mike Aviles 11
Justin Smoak 11
Neil Walker 10
George Springer 10
Tyler Saladino 10
John Hicks 10
Ian Desmond 10
Taylor Motter 10
Trayce Thompson 10
Niko Goodrum 10
Stuart Turner 10
Thomas Pham 10
Michael Moustakas 10
Starlin Castro 10
Zach Granite 10
Carlos Moncrief 10
Ryder Jones 10
Sean Rodriguez 10
Efren Navarro Jr 10
Ronald Torreyes 10
Luis Sardinas 10
Mitch Garver 10

Good luck!



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