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,[1] he plays outfield and first base for the Chiba Lotte Marines.

Koki Yamaguchi
Chiba Lotte Marines – No. 51
Outfielder, First Baseman
Born: (2000-08-18) August 18, 2000 (age 24)
Hirano-ku, Osaka, Japan
Bats: Right
Throws: Right
Career statistics
(through 2022 season)
Batting average.225
Hits118
Home runs25
Runs batted in77
Stolen base1
Teams

Early career

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Yamaguchi started for Meioh High School from his second year as a two-way player, batting cleanup as well as pitching. In 2017, Meioh advanced to the Summer Koshien tournament, losing in their first game. However, Yamaguchi was unable to pitch due to injury.[2] Yamaguchi served as Meioh's captain in his 3rd year, but Meioh was unable to return to Koshien after losing to Kosei Yoshida's Kanaashi Nogyo High School in the Akita final.[3]

On October 25, 2018, Yamaguchi was drafted in the 4th round of the 2018 NPB draft by the Chiba Lotte Marines, signing for an annual salary of 5.6 million Japanese yen with a 40 million yen bonus. At the time he was drafted, Yamaguchi expressed interest in remaining a two-way player as a professional.[1]

After two years spent exclusively on the second squad, Yamaguchi made his career first squad debut on opening day, March 26, 2021, vs the Fukuoka SoftBank Hawks. He started as the designated hitter for the game and batted 5th, recording his first career hit in the 5th inning vs Hawks starter Shuta Ishikawa.[4] Yamaguchi appeared in 78 games in total his rookie season, posting a slash line of .207/.365/.294 with 9 home runs.[5]

Pacific League Record

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In the 6th inning of Game 2 of the 2021 Pacific League Climax Series First Stage, Yamaguchi hit a solo homer off Rakuten Golden Eagles's Tomohiro Anraku, becoming the youngest player to hit a home run in a Pacific League Climax Series game at the age of 21 years and 2 months. The previous record holder was his teammate Hisanori Yasuda, who homered in the previous season's Pacific League Climax Series at the age of 21 years and 6 months.[6]

Personal life

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Yamaguchi is married to former HKT48 member and entertainer Aika Ota on November 20, 2023.[7] On October 5, 2024, the couple welcomed their first child, a baby girl.[8]

References

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  1. ^ a b "ロッテ4位山口、憧れ大谷目標に将来は二刀流目指す - プロ野球 : 日刊スポーツ". nikkansports.com (in Japanese). Retrieved 2022-02-19.
  2. ^ "明桜27年ぶり勝利逃す 負傷の山口航輝登板できず - 高校野球 : 日刊スポーツ". nikkansports.com (in Japanese). Retrieved 2022-02-19.
  3. ^ "ロッテ4位、山口航輝が乗り越えた苦境 ライバル・輝星との再戦を楽しみに待つ". スポーツナビ (in Japanese). Retrieved 2022-02-19.
  4. ^ "2021年3月26日(金)千葉ロッテ vs 福岡ソフトバンク 一球速報|千葉ロッテマリーンズ". 千葉ロッテマリーンズ オフィシャルサイト (in Japanese). Retrieved 2022-02-19.
  5. ^ "山口航輝 | 千葉ロッテマリーンズ | 選手". 週刊ベースボールONLINE (in Japanese). Retrieved 2022-02-19.
  6. ^ "ロッテ山口航輝パCS最年少本塁打「とにかくみんなで大阪に行きたい!」 - プロ野球 : 日刊スポーツ". nikkansports.com (in Japanese). Retrieved 2022-02-19.
  7. ^ 山口航輝が結婚発表、元AKB48・HKT48多田愛佳と Nikkan Sports 20 November 2023
  8. ^ "元AKB48・多田愛佳さんが第1子出産「尊い命に感謝し、家族で支え合いながら」 夫はロッテ山口航輝 - スポニチ Sponichi Annex 芸能". スポニチ Sponichi Annex (in Japanese). Retrieved 2024-10-06.