As Ryu Hyun-jin also Expressed his Dissatisfaction

As Ryu Hyun-jin also Expressed his Dissatisfaction, KBO Unusually Revealed Pitch Tracking Data

When Ryu Hyun-jin (37, Hanwha Eagles), who was famous for his precise pitch control in the Major League Baseball (MLB), complained about the Automatic Pitching System (ABS), the KBO secretariat unusually disclosed pitch tracking data to the media.

On the 26th, the KBO secretariat provided the media with pitch tracking judgment data from ABS operator Sports2I and shared data on the trajectory of balls thrown by Hanwha Moon Dong-ju and Ryu Hyun-jin to KT Wiz batters on the 23rd and 24th.

ABS, which the KBO League is implementing in the first team this year, is based on a tracking system in which a camera installed in a baseball field captures the trajectory of a pitcher’s ball, and a computer determines whether it is a strike or a ball and transmits it as an audio signal to an umpire wearing earphones.

The strike zone is set considering the height of the batter. 파워볼사이트

The height of the strike zone was set to be 27.64% to 56.35% of the batter’s height from the ground, and the width was increased by 2 cm on each side from home plate.

To be considered a strike, the ball must pass through the strike zone at both the middle and end surfaces of home plate.

By calculating the value of the ball falling due to gravity, the end of the strike zone was set to be 1.5 cm lower than the middle.

In the game against KT on the 24th, Ryu Hyun-jin threw four balls in a row to lead hitter Cho Yong-ho in the bottom of the third inning with a 1-0 lead.

Following up, Ahn Chi-young hit a grounder on the second pitch from the first ball, and the next batter, Kim Sang-soo, got on base four times and walked.

The first pitch that Ryu Hyun-jin threw to the fourth batter, Cheon Seong-ho, was also a ball.

Ryu Hyun-jin, who is said to hate giving up a walk more than hitting a home run, only threw balls in succession, which was a very rare scene.

In particular, the controversial three pitches that Ryu Hyun-jin threw to Cho Yong-ho appeared to be low in the strike zone on the graph, raising doubts about the reliability of ABS.

In the end, Ryu Hyun-jin only scored 3 points in the 3rd inning.

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