Hoshimachi Suisei and Hatsune Miku throw 105 km/h at Chiba Lotte first‑pitch ceremony

On July 20, 2026, ZOZO Marine Stadium in Chiba hosted a special first‑pitch ceremony during the Chiba Lotte Marines' game against the Fukuoka SoftBank Hawks. Virtual idol Hoshimachi Suisei, together with the Vocaloid Hatsune Miku, took the mound and recorded a 105 km/h strike, prompting surprise from fans and players such as Shingo Ishikawa. The event was part of Lotte’s “Cool & Refresh” summer promotion and featured synchronized visual effects linking the stadium’s main screen with the pitching area.

The performance was widely shared on social media, with viewers noting the unusually fast pitch for a ceremonial throw and highlighting the crossover between Japanese pop‑culture icons and professional baseball.