Player Directory
Tohoku Rakuten Golden Eagles
Kosei Koga
Kosei Koga
130
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ERA
ERA---
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strike out rate
K/9---
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BB Rate
BB/9---
*Fiscal year 2025
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position
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birthday
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age
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height
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body weight
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Birthplace
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Pitching and batting
left-handed pitcher / left-handed hitter
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Blood type
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Draft Year
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Biography
Shimonoseki International High School ~ 2023 Rakuten D Development ②
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Titles won
Videos
![[Farm Game] 111-pitch blitz! The Eagles 'Kosei Koga pitched 7 2/3 innings, striking out 7 strike out allowing no runs! September 11, 2025 Chiba Lotte Marines vs. Tohoku Rakuten Golden Eagles](https://img.youtube.com/vi/tBWZrpywhVM/sddefault.jpg)
![[Farm Game] The Eagles 'Kosei Koga 8 2/3 innings, allowing 113 pitches and 2 runs, earning his third win of the season! August 9, 2025 Tohoku Rakuten Golden Eagles vs. Oisix Niigata Albirex BC](https://img.youtube.com/vi/LRuD1YFkqlA/sddefault.jpg)
![[Farm] The Eagles 'Kosei Koga closer two perfect inning! May 7, 2025 Tohoku Rakuten Golden Eagles vs Oisix Niigata Albirex BC](https://img.youtube.com/vi/R9g743aa1EA/sddefault.jpg)
![[Farm] A smooth double play!! The Eagles 'Kosei Koga strikes out the batter with fastball and gives up no runs!! March 22, 2025 Tohoku Rakuten Golden Eagles vs Yokohama DeNA BayStars](https://img.youtube.com/vi/rbCiPE7O7iY/sddefault.jpg)
Participation results
No data
article
![[Miyazaki PL] 16 hit Inuwashi great win with 11 goals Kosei Koga is 6 in 7 hit 2 runs (earned runs 1)](https://media.insight.pacificleague.com/Tf9PKM0EgdJcQxqmJz07hoFHUQibtNyuoCELsdB7.jpg)
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![[Farm] Kosei Koga pitches no runs through the eighth inning as Tohoku Rakuten stops its losing streak](https://media.insight.pacificleague.com/webp/D7vlGGvRiG9CK7NEJpvXnTXnUuWRqm09DEw94xnC.webp)
[Farm] Kosei Koga pitches no runs through the eighth inning as Tohoku Rakuten stops its losing streak
Pacific League Insight
2025.9.11(木) 15:18
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![[Farm] Kosei Koga pitched well, allowing 6 hit 2 runs in 8.2 innings! Tohoku Rakuten win](https://media.insight.pacificleague.com/webp/cFGq5Ttq7rGy6bK9zJ5mlG3k0NWwUTROKzpmblcd.webp)
[Farm] Kosei Koga pitched well, allowing 6 hit 2 runs in 8.2 innings! Tohoku Rakuten win
Pacific League Insight
2025.8.9(土) 16:03
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Farm: Tohoku Rakuten, who scored five runs in the first inning, started the win and Kosei Koga went one in the sixth inning runs
Pacific League Insight
2024.9.28(土) 15:45
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