Sunday, September 10, 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:

0.350 — Eric Hosmer batting against Bartolo Colon
0.343 — Jose Altuve batting against Kendall Graveman
0.340 — Melky Cabrera batting against Bartolo Colon
0.340 — Lorenzo Cain batting against Bartolo Colon
0.338 — Whit Merrifield batting against Bartolo Colon
0.325 — Michael Moustakas batting against Bartolo Colon
0.314 — David Peralta batting against Luis Perdomo
0.310 — Salvador Perez batting against Bartolo Colon
0.306 — Daniel Murphy batting against Ben Lively
0.304 — Josh Reddick batting against Kendall Graveman

Colon pitched better with the Twins than he did with the Braves, but he still allows a good number of hits. With the Braves, his opposition slash line came in at .338/.383/.562. With the Twins, it’s down to .300/.328/.514. Note that a high BA allowed with a low OBP allowed means a high hit average, which is what matters for hit streaks.

Here is how the NN with Park ranks the players:

0.343, 0.777 — Jose Altuve batting against Kendall Graveman.
0.350, 0.753 — Eric Hosmer batting against Bartolo Colon.
0.306, 0.747 — Daniel Murphy batting against Ben Lively.
0.340, 0.747 — Lorenzo Cain batting against Bartolo Colon.
0.340, 0.746 — Melky Cabrera batting against Bartolo Colon.
0.338, 0.744 — Whit Merrifield batting against Bartolo Colon.
0.296, 0.736 — Eduardo Nunez batting against Alexander Cobb.
0.314, 0.734 — David Peralta batting against Luis Perdomo.
0.288, 0.728 — Dee Gordon batting against R.A. Dickey.
0.325, 0.726 — Michael Moustakas batting against Bartolo Colon.

Altuve and Hosmer are tied for consensus first pick. Hosmer is batting .400 so far in September, Altuve .267. If you like the hot hand, take Hosmer.

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
Jayson Werth 23
Aaron Hill 23
Allen Cordoba 21
Jorge Soler 20
Kyle Higashioka 20
Taylor Featherston 19
Tommy La Stella 18
Mark Zagunis 18
Andrelton Simmons 18
Jake Marisnick 16
Luis Valbuena 15
Chase D'Arnaud 15
A.J. Pollock 15
Paul Janish 15
Ryan Schimpf 14
Yasmani Grandal 14
Luis Torrens 14
Matt Davidson 14
A.J. Ellis 14
Emilio Bonifacio 14
Francisco Cervelli 14
Cristhian Adames 14
Tom Murphy 13
Stephen Drew 13
Corey Dickerson 13
Lewis Brinson 13
Nolan Fontana 13
Chris Coghlan 13
Nick Ahmed 12
Alex Mejia 12
Jared Hoying 12
Josh Donaldson 12
Chase Utley 12
Martin Prado 12
Daniel Robertson 12
Jarrod Dyson 12
Hunter Pence 12
Andrew Romine 12
Dexter Fowler 12
Gavin Cecchini 11
Kaleb Cowart 11
Ryan McMahon 11
Danny Ortiz 11
Brock Stassi 11
Joc Pederson 11
Scott Van Slyke 11
Kolten Wong 11
Carlos Moncrief 10
Miguel Montero 10
Taylor Motter 10
Yonder Alonso 10
Scott Schebler 10
Eric Sogard 10
Adam Duvall 10
Luis Sardinas 10
Mark Trumbo 10
Tyler Saladino 10
Tyler Collins 10
Jett Bandy 10
Thomas Pham 10
Efren Navarro Jr 10
Stuart Turner 10

Good luck!



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