Hiroki Kuroda picked up his fourth victory of the season on April 30 against Chunichi at Mazda Stadium. He is the thirteenth pitcher over forty-one (as of opening day) to win at least four games in a season, first since Daisuke Miura won six in 2015. He is the first to win four before the end of April. He is the third pitcher over forty to win four games before the end of April. The other two: Tsuyoshi Shimoyanagi in 2008 and Kenny Ray in 2015.
He joined Yutaka Ono (five wins in 1996, nine wins in 1997) and Ken Takahashi (four wins in 2010) as the only pitchers in Hiroshima franchise history to win at least four games during or after the season they turned forty-one.