Wednesday, June 21, 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:

0.338 — Jose Ramirez batting against Kevin Gausman
0.322 — Starlin Castro batting against Ricky Nolasco
0.322 — Didi Gregorius batting against Ricky Nolasco
0.315 — Justin Turner batting against Tyler Pill
0.306 — Lonnie Chisenhall batting against Kevin Gausman
0.305 — Matt Kemp batting against Jeff Samardzija
0.304 — Brandon Phillips batting against Jeff Samardzija
0.298 — Ender Inciarte batting against Jeff Samardzija
0.298 — Aaron Judge batting against Ricky Nolasco
0.295 — Charlie Blackmon batting against Taijuan Walker

The Dodgers beat the Mets 12-0 Tuesday night, with pretty much everyone around Justin Turner getting a hit. Corey Seager hit three home runs. Turner reached on an error in the first inning, made three outs, then Dave Roberts decided to rest him in a blow out rather than give him a fifth PA to try to advance Turner’s hit streak.

Jose Ramirez, having his second outstanding season at the plate, moves to the top of the Log5 list. Ramirez plays 2017 as a 24-year-old, still a year away from his prime. He’s added power this season, already matching his home run total from 2016 in less than half the at bats.

Here is how the NN with Park ranks the players:

0.338, 0.748 — Jose Ramirez batting against Kevin Gausman.
0.278, 0.743 — Daniel Murphy batting against Daniel Straily.
0.315, 0.742 — Justin Turner batting against Tyler Pill.
0.322, 0.740 — Starlin Castro batting against Ricky Nolasco.
0.295, 0.739 — Charlie Blackmon batting against Taijuan Walker.
0.322, 0.738 — Didi Gregorius batting against Ricky Nolasco.
0.304, 0.734 — Brandon Phillips batting against Jeff Samardzija.
0.283, 0.729 — DJ LeMahieu batting against Taijuan Walker.
0.298, 0.726 — Ender Inciarte batting against Jeff Samardzija.
0.305, 0.726 — Matt Kemp batting against Jeff Samardzija.

Ramirez comes out on top in both lists. Gausman allowed a .301 hit average so far this season. That is extreme for a pitcher. Note that in a year where players are hitting a lot more home runs, Gausman’s high BA allowed is a result of more singles. His isolated power is about the same.

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 29
Jett Bandy 25
Daniel Robertson 24
Jarrod Saltalamacchia 23
Raul Mondesi 23
Kyle Higashioka 20
Conor Gillaspie 19
Aaron Hill 17
Matt Wieters 17
Matthew Szczur 16
Greg Bird 15
Eric Thames 15
Mitch Moreland 14
Ryan Schimpf 14
Emilio Bonifacio 14
Cristhian Adames 14
Jorge Polanco 14
Miguel Cabrera 13
Chase Headley 13
Joey Rickard 13
Chris Coghlan 13
Daniel Nava 13
Christian Vazquez 13
Joey Gallo 13
Peter Kozma 13
Chris Carter 12
Greg Garcia 12
Ryon Healy 12
Rio Ruiz 12
Franchy Cordero 12
Kevin Pillar 12
Leonys Martin 12
Nolan Fontana 12
James McCann 11
Orlando Calixte 11
C.J. Cron 11
Mitch Haniger 11
Craig Gentry 11
Buster Posey 11
Danny Ortiz 11
Matt Olson 11
Starling Marte 11
Kevin Plawecki 11
Stuart Turner 11
Billy Hamilton 10
JaCoby Jones 10
Scott Van Slyke 10
Michael Conforto 10
Luis Sardinas 10
Adrian Gonzalez 10
Russell Martin 10
Yandy Diaz 10
Ryan Braun 10
Allen Cordoba 10
Josh Bell 10
Boog Powell 10
Tyler Collins 10
Jared W. Hoying 10

Good luck!



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