Yamaguchi Ken
Seidou High School - No. 14
1st baseman
Bats: Right Throws: Right
Kanji 山口健
Gender Male
Age 16 (debut)

17 [1]

Date of birth 05 June
Bloodtype B
Height 178 cm (5' 10")
Weight 72 kg (158 lbs)
Education 2nd Year High School (debut)

3rd Year High School [2]

First Appearance
Voice Actor Miyake Takahiro

Yamaguchi Ken is a student of Seidou High School. After the end of the summer tournament and the retirement of the 3rd-Years (Yuuki's generation), Yamaguchi was able to make it to the First-String. He was also formerly roommates with Miyauchi Keisuke.


Yamaguchi Ken likes to build up his body, he is very muscular and likes to weight lift.

He is the reserve 1st baseman of the first string.


Yamaguchi is a power hitter, who makes long hits and is capable of hitting a homerun.

Player StatisticsEdit

Comming soon


He has a rivalry with Maezono since both of them play 1st baseman position, and they both make it to the first string at the same time.

His batting avg and power are similar to Maezono, and is one of the reasons he will not let it end with just being his reserve.




  1. Act I - Chapter 40
  2. Act I - Chapter 412


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