On the 17th, Lotte announced that professional boxer Tenshin Nasukawa (27), ranked No. 1 in the WBC world bantamweight division, will throw the ceremonial first pitch at their game against Softbank Hawks on the 26th (at ZOZO Marine Stadium).

Nasukawa, who hails from Matsudo City, commented through the team, "I will pitch in a way that prevents scouts from coming."

On the same day, the special event "The Marines Summer Festival" will also be held. In addition to festival games and food stalls lining the perimeter of the stadium, there will be festival-themed performances and summer festival-themed decorations inside the stadium.