Boom from 2 meters high! Can we see 157km must-win group → 6G consecutive bullpen + 22K Yoon Sung-bin is now

Jun 13, 2025

Yoon Sung-bin checking pitchcom equipment during pitching in the first inning.

The KBO League game between Lotte and LG held at Sajik Baseball Stadium in Busan on the 20th. Lotte's Yoon Sung-bin is pitching as a starter. Busan = Song Jeong-heon Reporter's songs@sportschosun.com/2025.05.20/

He struck out three pitches with 157km, 156km, and 157km fastballs. A powerful fastball that flexibly hits down from a tall height of 1m97 is a moment when Lotte Giants fans would cheer with their fists clenched.

Yoon Sung-bin is the star of Lotte's fastball that Kim Tae-hyung is also coveting. This is the ninth year of his professional career this year since he wore the Lotte uniform as the first nomination in 2017. Now the term 'painful fingers' feels like a proper noun.

Yoon Sung-bin, who started against the LG Twins on May 20 after being selected by the head coach again following last year. The result was the worst slump ever. In one inning, he allowed four hits, four outs, seven runs, and nine runs, and in the second inning, he did not get an out count.

However, there was also a dizzying thrill for a moment. When Park Hae-min, the first batter, was struck out on three pitches, even the LG fans of the opposing team cheered. The 156, 157km fastballs that were inserted into the strike zone without hesitation made the viewer's chest jump.

Since then, it has collapsed again, revealing its unanswered control difficulties. From the head coach's point of view, it is difficult to give him a chance to start at least that year. No matter how much the head coach is, there are eyes of other players seeking a starting opportunity, and the players' hard work in dealing with such a game, and the team atmosphere that will collapse after one game is lost.

Lotte-KT match held at KT Wiz Park in Suwon on the 11th. Lotte manager Kim Tae-hyung is watching the training. Suwon = Reporter Jeong Jae-geun cjg@sportschosun.com /2025.6.11/

Still, Lotte manager Kim Tae-hyung decided to use Yoon Sung-bin somehow this season. In the meantime, the evaluation of Yoon Sung-bin focused on 'Let's try to establish ourselves as a starter somehow and let him last four or five innings as his control is so shaky.

However, Lotte has been developing Yoon Sung-bin into a bullpen since 'That Day' If the ball is so good and only throws it in the strike zone, I hope the first inning of the day will come out for one inning.

Yoon Sung-bin took the mound as a bullpen for the next six consecutive games. Five runs in a total of 13 innings. There are still ups and downs, but not bad by Futures standards. In particular, there are as many as 22 strikeouts. More than half (56.4%) of the outcounts are struck out. As much as he steps out to the bullpen, there is less pressure on the number of pitches.

Yoon Sung-bin took the mound as the second pitcher of the Lotte Futures team in the sixth inning after starting pitcher Jung Woo-joon at the Defense Ministry Sports Competition held in Mungyeong on the 12th. Pitching two innings, one hit and one run. At the 4-4 tie, he became a losing pitcher by allowing Yoon Joon-ho to take the final hit of the day.

Yoon Sung-bin checking pitchcom equipment during pitching in the first inning.

However, he showed off his dignity by striking out five out of six outs. Even so, if you can prove that you are a fastball pitcher who can strike out in case of a crisis, you can use it as a bullpen in the first team in the future.

Will Yoon Sung-bin's challenge to the bullpen be successful. Choi Joon-yong has returned and is sharing Jung Cheol-won's burden, but for Lotte, which absolutely lacks fastball pitchers, the possibility of Yoon Sung-bin is not a small light of hope.

This article was translated by Naver AI translator.