September 25, 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:

0.355 — Christian Vazquez batting against Brett Anderson
0.352 — Dustin Pedroia batting against Brett Anderson
0.349 — Rafael Devers batting against Brett Anderson
0.334 — Xander Bogaerts batting against Brett Anderson
0.328 — Mookie Betts batting against Brett Anderson
0.321 — Andrew Benintendi batting against Brett Anderson
0.320 — Sam Travis batting against Brett Anderson
0.318 — Avisail Garcia batting against Ricky Nolasco
0.316 — Ender Inciarte batting against Chris Flexen
0.315 — Ender Inciarte batting against Seth Lugo
0.315 — Jean Segura batting against Daniel Gossett
0.315 — Blake Swihart batting against Brett Anderson

Wow, Brett Anderson is really bad. Over the last three seasons batters hit an even .300 against him with a .346 OBP, and this year that’s up to .335 with a .387 OBP. It looks like a good day for the Red Sox to shave at least one off their magic number.

Note that the Braves and Mets play a twi-night double header, so be careful which Braves you pick and when.

Here is how the NN with Park ranks the players:

0.306, 0.759 — Jose Altuve batting against Andrew Cashner.
0.352, 0.755 — Dustin Pedroia batting against Brett Anderson.
0.355, 0.749 — Christian Vazquez batting against Brett Anderson.
0.297, 0.740 — Daniel Murphy batting against Aaron Nola.
0.349, 0.740 — Rafael Devers batting against Brett Anderson.
0.288, 0.737 — Charlie Blackmon batting against Odrisamer Despaigne.
0.318, 0.737 — Avisail Garcia batting against Ricky Nolasco.
0.315, 0.736 — Ender Inciarte batting against Seth Lugo.
0.316, 0.735 — Ender Inciarte batting against Chris Flexen.
0.315, 0.735 — Jean Segura batting against Daniel Gossett.
0.334, 0.735 — Xander Bogaerts batting against Brett Anderson.

Altuve pops to the top as usual, but Pedroia and Vazquez are tied for the consensus first pick.

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
Jorge Soler 24
Arismendy Alcantara 24
Aaron Hill 23
Jackie Bradley, Jr. 23
Jarrod Saltalamacchia 23
Kyle Higashioka 20
Taylor Featherston 19
Adam Rosales 18
Mark Zagunis 18
Odubel Herrera 17
Guillermo Heredia 17
Stuart Turner 17
Ronald Torreyes 17
Rougned Odor 16
C.J. Cron 16
Sean Rodriguez 15
Jett Bandy 15
Paul Janish 15
Chase D'Arnaud 15
Cristhian Adames 14
Francisco Cervelli 14
Ryan Schimpf 14
Tom Murphy 14
Emilio Bonifacio 14
Anthony Kemp 13
Tyler Saladino 13
Roberto Perez 13
Nolan Fontana 13
Stephen Drew 13
Rajai Davis 13
Willie Calhoun 13
Lewis Brinson 13
Chris Taylor 13
Chris Coghlan 13
Eugenio Suarez 13
Ryan McMahon 12
Carlos Gonzalez 12
Jose Osuna 12
James McCann 12
Pedro Severino 12
Nick Ahmed 12
Danny Valencia 12
Carlos Santana 12
Jarrod Dyson 12
Martin Prado 12
Dexter Fowler 11
Danny Ortiz 11
Trayce Thompson 11
Tyler Collins 11
Kristopher Negron 11
Rafael Bautista 11
Brock Stassi 11
Scott Van Slyke 11
Adrian Gonzalez 10
Jason Heyward 10
Brett Gardner 10
Carlos Moncrief 10
Zach Vincej 10
Ketel Marte 10
Carlos Perez 10
J.T. Realmuto 10
Luis Sardinas 10
Alen Hanson 10
Andrew Stevenson 10
Derek Fisher 10
Andrew Susac 10

Good luck!

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