Which Players Have Been Most Affected by Good and Bad Defensive Plays? July 16th, 2018, SIS Blog BY DON BROCKUSSo far in 2018, 1.4 percent of plate appearances have included a Good Fielding Play (GFP) that robbed a base hit and 1.2 percent of plate appearances have included a Defensive Misplay (DM) that directly led to a base hit. In this article, we will identify the players whose hit totals have been most affected by these GFPs and DMs. Good Fielding PlaysHere is a table of the players with the most hits robbed by GFPs this year. PLAYERPASGFPS% OF PAS Jean Segura 379 13 3.4% Jon Jay 397 13 3.3% Chad Pinder 196 11 5.6% Nick Markakis 402 11 2.7% Starlin Castro 402 11 2.7% Trea Turner 412 11 2.7% Xander Bogaerts 326 11 3.4% Jean Segura and Jon Jay lead all players with 13 hits robbed by GFPs this year (3.4 percent and 3.3 percent of plate appearances, respectively), with most of these outs recorded on ground balls for both players. More specifically, Segura has had GFPs against him on seven ground balls, three line drives, and three fly balls, while Jay has had GFPs against him on 11 ground balls and two line drives. In this link, Segura is robbed of a base hit when Johnny Field runs to his left and makes a diving catch. Defensive MisplaysOn the opposite end of the spectrum, here is a table of the players with the most hits added this year due to DMs. PLAYERPASDMS% OF PASEnder Inciarte395153.8%Gorkys Hernandez266114.1%Albert Almora Jr.292113.8%Jose Altuve415102.4%Michael Brantley351102.8%Andrelton Simmons334103.0%Ian Desmond350102.9% Ender Inciarte leads all players with 15 hits added by DMs this year (3.8 percent of plate appearances), with hits added due to ground balls going through infielders, poor reads by outfielders, and fielders simply dropping the baseball. Note that errors are not included here since reaching base on an error does not count as a hit. As shown in this link, Inciarte hits a double when Brian Anderson gets turned around on a catchable fly ball. Combined GFPs and DMsTo identify the players most affected by these plays, I calculated the difference between the GFP total and the DM total for each player, respectively. In the table below, a positive difference means the player should have more hits if not for exceptional defensive plays, while a negative difference means the player should have fewer hits if not for poor defensive plays. PLAYERGFPSDMSDIFFERENCEABSOLUTEDIFFERENCEChad Pinder11110 10Evan Longoria10010 10Mike Trout08-8 8C.J. Cron1028 8Miguel Rojas1028 8Lewis Brinson918 8Eric Hosmer808 8Ender Inciarte815-7 7Albert Almora Jr.411-7 7Eddie Rosario29-7 7Jon Jay1367 7 Chad Pinder and Evan Longoria lead all players with a plus-10 hit differential, which means both players should have 10 more hits if not for good defensive plays. Mike Trout leads all players in the other direction with a -8 hit differential, which means he should have eight fewer hits if not for bad defensive plays. The average differential across all players is +0.5 hits (2.5 GFPs vs 2.0 DMs), so Pinder and Longoria have probably been a little unlucky, while Trout has probably been a little lucky.