[1][2] In his senior year in middle school, Ishigaki was selected for the Tohoku regional representative team.

[3] Ishigaki started his career in the Western League farm team playing mostly at third-base where he hit .197 with 3 homeruns in 60 games.

[5] On 12 July, Ishigaki was selected as a Dragon's representative in the 2018 Fresh All-Stars game where he hit a backscreen homerun as well as capturing MVP honours.

[10] On 21 August, Ishigaki was promoted to the first team and on the same day struck his first professional hit as a pinch-hitter against Yomiuri Giants ace, Tomoyuki Sugano.

[1] He has likened himself to and idolises Tokyo Yakult Swallows' triple crown man, Tetsuto Yamada.