As Ryu Hyun-jin also expressed his dissatisfaction, KBO unusually revealed pitch tracking data

Ryu Hyun-jin ‘Today is a day that doesn’t work out’

When Ryu Hyun-jin (37, Hanwha Eagles), who was famous for his precise pitch control in the American Major League Baseball (MLB), expressed dissatisfaction with the Automatic Pitching System (ABS), the KBO secretariat made an unusual pitch decision. Tracking data was released 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. 슬롯사이트

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

The strike zone height 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. 안전놀이터

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.

The KBO Secretariat explained, “This ball passed 0.15cm above the bottom of the ABS middle zone, but failed to pass the bottom of the ABS end zone by 0.78cm, so it was ruled a ball.”

In other words, to be considered a strike, the ball must pass through the strike zone on both the middle and end sides of the home plate, but it did not pass through the bottom of the end zone, so it became a ball.

On the 23rd, the 4 pitches (strike) that Moon Dong-joo threw to Cheon Seong-ho in the bottom of the 4th inning on the 24th, and on the 24th, the 3 balls (balls) that Ryu Hyun-jin threw to Cheon Seong-ho in the bottom of the 1st inning were said to be in different locations on the graphics. Moon Dong-joo’s 4 pitches were in the strike zone, while Ryu Hyun-jin’s 3 Gu said he was out of the strike zone.

It seems difficult to disagree with the ABS judgment based on the numbers and pictures.

However, since there is a widespread perception among actual pitchers and on-field coaches that ABS decisions are different for each stadium, Sports2I and the KBO secretariat are expected to work hard to allay distrust. 토토사이트 추천

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