Until when do you keep the check swing misjudgment. We need to think about early introduction of 2nd-tier video reading

May 13, 2025

Until when do you keep the check swing misjudgment. We need to think about early introduction of 2nd-tier video reading
Check swing video review by Doosan Jang Seung-hyun on May 3rd. It was recognized as a swing. KBO Video Read Screen Capture



Until when do you keep the check swing misjudgment. We need to think about early introduction of 2nd-tier video reading
Check swing video review by Hong Sung-ho of Doosan on May 4th. It was recognized as the North Wing. KBO Video Read Screen Capture
Until when do you keep the check swing misjudgment. We need to think about early introduction of 2nd-tier video reading
Check swing video review by managing director Park Chan-hyuk on May 7. Reversed with a swing on the North Wing. KBO Video Read Screen Capture
There are few cases of judgment disputes in the KBO League these days.

The out and safe decision was able to correct almost all unfair misjudgment by video review, and due to ABS introduced since last year, fairness disputes for strike-ball have disappeared.

But there is still something to be desired. It's the check swing controversy.




Batters often hit the bat and then stop. At that time, an ambiguous situation arises, and the referee and the first and third base judges determine whether the batter's bat has turned or not, but it is not easy to pinpoint it by looking at the moment.

Unfortunately, the broadcasting company immediately shows the replay screen, allowing some judgment to know whether it was an accurate decision or a misjudgment. There were many scenes that I saw accurately, but there was also a misjudgment that I missed unfortunately. Even in slow motion, it's hard to decide whether it's a swing or not

The misjudgment is also part of the game, but in a situation where the scope of the misjudgment has been narrowed due to video reading and ABS, the misjudgment of the check swing, which can be known to some extent through broadcast replay, is becoming an increasingly unconvincing scene for fans watching the game.




There is good news. KBO has introduced and operated a video reading of checkswing in the Futures League this season.

When the batter swings the bat, it is recognized as a swing when the angle of the bat is shifted in the direction of the pitcher rather than the point parallel to the front of the home plate. Two reading opportunities will be given and if the decision is reversed, the opportunity will be retained. The camera installed by KBO allows the referee to see the monitor and make a decision on the spot, but the result is quite good.

There were a total of 58 requests for check swing decisions until the 12th, with 38 requests for decision maintenance and 20 reversals. The reversal rate was 34.5 percent. Among them, 10 were overturned to swing after judging the North Wing, and 10 were overturned to the North Wing from swing.




The KBO website informs the results of all the check swing video readings. When it's the North Wing, it tells you that you didn't cross the yellow line with the green line, and when it's a swing, it tells you that you've crossed the line with the red line.

KBO has expressed its intention to operate in the Futures League and consider whether to operate in the first team after finding out its strengths and weaknesses and improvements, but it has been operating stably in the Futures League so far, so there seems to be no problem in quickly introducing it to the first team.

LG Twins manager Yeom Kyung-yeop, who strongly insisted on the introduction of check swing video readings last season, is still insisting on a quick introduction, saying, `I almost went out a few times this year because of check swing.'

It is a fact that everyone agrees that fairness played a big role in the popularity of the KBO league. It's time to relieve the unfairness of the check swing. Even from the second half of the year, the first team should consider whether to introduce a check swing video reading or not.



This article was translated by Naver AI translator.