ML, who is a little closer, should be closer to speed, and Woo-seok's single A+→ Triple A promotion, 1K scoreless in 1 inning

Jun 07, 2025

ML, who is a little closer, should be closer to speed, and Woo-seok's single A→ Triple A promotion, 1K scoreless in 1 inning
Ko Woo-suk of the Miami Marlins Triple-A Jacksonville Jumbo Shrimp. Photo = MiLB.TV Capture



Ko Woo-seok is approaching the Major League.

Ko Woo-seok, who is pitching in a minor league under the Miami Marlins, pitched in his first Triple-A game of the season and pitched well without losing a point.

Jacksonville Jumbo Shrimp right-hander Ko Woo-suk impressed with his scoreless pitching by giving up one hit in one inning and striking out one in a home game against the Durham Bulls (under Tampa Bay Rays) at Vista Ball Park in Jacksonville, Florida on the 7th (Korea time).




Ko Woo-seok was transferred from High Single A to Triple A on the same day. And he was immediately put into practice. Ko Woo-suk took the mound as the team's fourth pitcher in the top of the eighth inning, trailing 0-7.

Ko Woo-seok, who caught lead-off left-handed hitter Bob Seymour with a high fly to right field with a 79.9-mile curve on the fifth pitch in the ball count 2B2S, faced a crisis by giving up a left-handed hit to Dominic Keegan. The third pitch, the 88.6-mile splitter, went into the middle of the middle, and the batting speed reached 109.4 miles.

Ko Woo-seok from Triple-A Jacksonville Jumbo Shrimp. Photo =MiLB.com
However, Ko Woo-suk overcame the crisis by throwing a 92.8-mile fastball on the fourth pitch to strike out a foul tip, and handled Carson Williams with a 91.9-mile fastball to left field to finish the inning.




There were 17 pitches and 11 strikes. His fastball speed of 12 pitches reached a maximum of 93.5 miles (150.5 kilometers) and an average of 92.7 miles. When Ko Woo-seok threw at Jacksonville last year, his average fastball speed was 93.3 miles. It's a difference of 0.6 miles.

Ko Woo-suk started this season with the injured list (IL). In February, he participated in Jupiter Spring Training in Florida as a non-roster guest player, but he injured his right index finger and stopped training. At the time, MLB.com said that Ko Woo-seok felt something wrong with his finger while practicing with a towel in the hotel weight room. And the pain worsened when he changed his grip during the live bullpen session. 'I'm going to have a reexamination in two weeks, and it's expected to take about a month to return,' he said.

He suffered a fractured index finger while bird-pitching at the accommodation. It was an extremely unusual injury.




Ko Woo-seok, who improved his condition after focusing on rehabilitation, took the rookie-level mound on May 9 and started pitching for the first time. Ko Woo-seok, who moved to Single-A Jupiter Hammer Heads on May 15, took the mound in four games until the end of May, allowed seven hits, five walks, four strikeouts, and four runs in five innings, went up to the High Single-A Veloa Skycap on the 2nd, threw two games, and was promoted to Triple-A on the same day and immediately took the mound.

Until this day, he gave up 11 hits and eight walks in 10 ⅔ innings in eight minor league games, allowing six runs with an ERA of 5.06. He struck out 10.

At the current pace, you can expect a big league call-up within June. The key is to recover the speed of fastballs. It is worth paying attention to the big leagues only when the average speed is raised to at least 94 miles.

Ko Woo-suk, who joined the San Diego Padres last year but failed to enter the big league, began his U.S. baseball career in Double-A. Then, after being traded to Miami in early May, he stayed in Triple-A and Double-A and ended the season. Last year's minor league record was 52 ⅓ innings, 4-3 with a 6.54 ERA in 44 games.



This article was translated by Naver AI translator.