Kim Seo-hyun is 161km, but Moon Dong-ju is not over 160.1km, right? Why the hell?

May 04, 2025

Kim Seo-hyun is 161km, but Moon Dong-ju is not over 160.1km, right? Why the hell?
Hanwha Kim Seo-hyun is pitching hard in the bottom of the 9th inning of the match between Hanwha and KIA at Gwangju KIA Champions Field on the 4th.Gwangju = Reporter's book@sportschosun.com/2025.05.04/



He threw a fastball of up to 161km, but he's not the highest speed for a domestic pitcher?

Hanwha Eagles Kim Seo-hyun took the mound in the bottom of the ninth inning with Hanwha leading 3-1 in an away game against the KIA Tigers at Kia Champions Field in Gwangju on the 4th. Kim Seo-hyun, who faced Patrick Wisdom, the leadoff hitter in the inning, succeeded in inducing two consecutive swings and misses in 3B1S and struck out swinging. His highest fastball speed against Wisdom was 159 kilometers, his last ball.

And Kim Seo-hyun, who faced the next batter, last year's KBO League MVP Kim Do-young, threw a 161km fastball at the first pitch. Kim Do-young dealt with the super fastball in the middle and produced a hit that fell in front of right field, but Kim Seo-hyun's fast ball also caused admiration in the stands.




Currently, Hanwha Moon Dong-joo, a senior member of the same team, holds the record for the highest domestic pitcher's arrest in the KBO. On April 12, 2023, Moon Dong-ju marked 160.1km against KIA in Gwangju, making him the first pitcher to record more than 160km in ball speed.

Kim Seo-hyun is 161km, but Moon Dong-ju is not over 160.1km, right? Why the hell?
The match between Hanwha and KT at Hanwha Life Ball Park in Daejeon on the 26th. Hanwha Moon Dong-joo finished pitching in the seventh inning. Daejeon = Song Jeong-heon Reporter's songs@sportschosun.com/2025.04.26/
However, it is quite ambiguous that Kim Seo-hyun cannot be considered to have exceeded Moon Dong-ju's maximum arrest. At the time when Moon Dong-ju's 160.1 km was measured, KBO admitted the measurement restriction of 'PTS'. This season, the constraint measurement has been unified based on 'Trackman'.

The accurate measurement speed of the first pitch thrown to Kim Do-young, who was seen based on 'Trackman' in Gwangju, is about 160.5 kilometers. It was rounded up and marked 161 kilometers on the electronic display.




However, this is not Kim Seo-hyun's personal maximum arrest based on 'Trackman'. Kim Seo-hyun's maximum personal speed based on 'Trackman' is about 160.7 km recorded in the match against Samsung in Daejeon on May 11, 2023. It is difficult to say that Kim Seo-hyun's '161km' exceeded Moon Dong-ju's '160.1km' because there was no clear binding and unification until the past.

Kim Seo-hyun is 161km, but Moon Dong-ju is not over 160.1km, right? Why the hell?
In the match between Hanwha and KIA held at Gwangju KIA Champions Field on the 4th, Hanwha won 3-1 and won six consecutive games. Kim Seo-hyun and Lee Jae-won's battery sharing the joy of victory.Gwangju = Reporter's book@sportschosun.com/2025.05.04/
Kim Seo-hyun did not falter after being hit by Kim Do-young, struck out Choi Hyung-woo with a 157-km fastball, and then cooked Kim Sun-bin with a breaking ball to catch a ground ball to third base.

It's already 10 saves. Hanwha chose to replace the closer in a surprise move at the beginning of this season, judging that the condition of the main phenomenon has not yet fully risen. Kim Seo-hyun is the pitcher who was selected as a substitute. He is the fastest pitcher among Hanwha bullpen pitchers, who can throw nearly 160 kilometers of fastballs and throw more than 150 kilometers.




Kim Seo-hyun's choice of finishing has been a huge success so far. In 19 games, he has maintained a 1-loss, 1-hold, 10-save, and 0-point ERA, completely blocking Hanwha's back door.



This article was translated by Naver AI translator.