In the 2019 NPB Draft, he was largely regarded as the most talented hitter of his class.

[1] Ishikawa reached national attention after helping Toho High School to victory in the 2019 spring invitational tournament where he was the team's ace and clean-up hitter.

Rights to negotiate for Ishikawa's contract were won by the Dragons after manager Tsuyoshi Yoda pulled out the winning ticket.

[3][4][5] On 1 November, Ishikawa signed a pre-contract with the Dragons guaranteeing a ¥100,000,000 sign-on bonus and a ¥15,000,000 yearly salary with ¥50,000,000 in incentives.

This biographical article relating to a Japanese baseball infielder is a stub.