Koki Yamaguchi
| Koki Yamaguchi | |
|---|---|
| Chiba Lotte Marines – No. 51 | |
| Outfielder, First Baseman | |
| Born: August 18, 2000 Hirano-ku, Osaka, Japan | |
Bats: Right Throws: Right | |
| Career statistics (through 2022 season) | |
| Batting average | .225 |
| Hits | 118 |
| Home runs | 25 |
| Runs batted in | 77 |
| Stolen base | 1 |
| Teams | |
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Koki Yamaguchi (山口 航輝, Yamaguchi Kōki; born August 8, 2000) is a professional Japanese baseball player. Selected in the fourth round of the 2018 NPB Draft from Meioh High School in Akita Prefecture, he plays outfield and first base for the Chiba Lotte Marines.