Brad Eldred, Seiya Suzuki, and Shota Dobayashi went back-to-back-to-back (solo home runs off Yoshihisa Naruse) in the second inning against Yakult at Jingu Stadium on April 26.
The last time three Hiroshima players hit consecutive home runs was against Yomiuri at Hiroshima on September 2, 2005: Shigenobu Shima, Takahiro Arai, and Tomonori Maeda.
The last time three NPB players hit consecutive home runs was Nippon Ham against Orix at Hotto Motto Kobe on September 5, 2015: Sho Nakata, Kensuke Kondo, and Brandon Laird.
Eldred and Suzuki went on to him one more home run during the game. Suzuki hi a grand slam off Luis Perez in the seventh inning and Eldred a solo home run off Kenichi Matsuoka in the ninth.
Source: Sports Hochi 4/26/2016