Going to the U.S.? There's a team that's interested... Boom at 1m96! 9K Boom Seo-jun, Draft Big 3's inner thoughts

Jun 29, 2025

Going to the U.S.? There's a team that's interested... Boom at 1m96! 9K Boom Seo-jun, Draft Big 3's inner thoughts
Joong-Go Seo-jun for the interview. Reporter Kim Young-rok



A powerful fastball that goes down from a tall height of 1m96. Jangchung High School's Seo Moon-joon sang hope on the stage of Cheongryonggi.

Seo Moon-joon took the mound with two outs in the fifth inning at the 80th Cheongryonggi National High School Baseball Championship and the weekend league King Wangjung Exhibition (co-hosted by the Chosun Ilbo, Sports Chosun, and the Korea Baseball Softball Association) at Mokdong Stadium on the 29th, blocking four ⅓ innings with two hits, one run and three walks.

In particular, he showed off his solid presence by striking out all seven of his first out counts. He struck out a total of nine. Seo Moon-joon is considered one of the top three candidates for this year's rookie draft, along with Park Joon-hyun of Bukil High School and Yang Woo-jin of Gyeonggi Aviation High School, who are famous for being the son of professional baseball legend Park Seok-min (Samsung-NC).




When I was in the second grade, I already shot up to 152km, drawing keen attention. This year has been somewhat sluggish. As Seo Moon-joon shook, Jangchung High School also stumbled. In this year's E-Mart Cup, he was eliminated early in the second round and failed to make the stage of the Golden Lion.

So I'm even more desperate for this blue dragon flag.

First of all, I took the first step well. The ball control is being caught, and there are high expectations that the ball control will gradually rise. In addition to the fastball, he uses change-up as his main weapon, and he also uses two-seam, slider, and curve. The maximum speed of the day was 149km, but the overwhelming feeling of hitting from a high place with a flexible pitching form was clearly shown.




Going to the U.S.? There's a team that's interested... Boom at 1m96! 9K Boom Seo-jun, Draft Big 3's inner thoughts
Director Song Min-soo. Sports Chosun DB
After the game, Seo Moon-joon threw with the intention that he would not give even a single point. "It's a shame that I lost one point, but the game went well in my own way." Immediately after taking the mound, he smiled about his seven consecutive strikeouts, saying, `It happened because I was confident in the fast count of one ball and one ball.'

The number of pitches on the day was 82. Two walks were disappointing in the bottom of the last ninth inning. Can't take the mound for the next three days..

As he became healthy by shaking off all the remaining injuries at the beginning of the season, his pitching balance improved. Seo Moon-joon "Now I feel like I'm catching my pitching form. He explained, "The intensive practice of the timing of the lower body and arms crossing is producing good results."




As Kim Sung-joon of Gwangju Jeil High School goes straight to the Texas Rangers in the Major League, other high school baseball prospects are also paying attention. Seo Do-joon is also attracting attention from Major League scouts because he has good physical and ball power.

KBO will accept rookie draft applications by August 18. Moon Jae-joon's move must also be decided before then.

Seo Moon-jun "I don't think I'm in a position to talk about it now. I'll think about the blue dragon flag" conveyed his intentions. As for the reason to think about going to the U.S., "I'm also worried because the U.S. teams are interested in talking."

As for the youth team, "I'm confident." I hope you pick one," he stressed.
Going to the U.S.? There's a team that's interested... Boom at 1m96! 9K Boom Seo-jun, Draft Big 3's inner thoughts
장충고 문서준. Sports Chosun DB
Song Min-soo, manager of Jangchung High School, said on the reason why he pushed Seo Moon-joon as he was on the same day, "I was worried about the pitching, but I decided that it would be better to push him as a throwing player now, including the situation of a three-point difference.", he explained.

As for the maximum fastball speed of less than 150km, Seo-jun feels a little nervous because today is the first day. There is also a feeling that it is burdensome to put it in the ABS (Automatic Ball Determination System) zone"As the tournament proceeds, the restraint will rise naturally" he said.

As for Jang Jin-hyuk, who led the team's batting lineup with two hits and two RBIs in four times at bat on the day, "Swing is amazing, but there have been many minor injuries recently. Now that he is fully healthy, I expect him to show his skills in this competition," he stressed.





This article was translated by Naver AI translator.