In January 2019, the Baseball Federation of Japan held a baseball5 seminar in Tokyo, with the goal of promoting the sport in Japan, specially among the kids, youth and high school and university students.

[2] Japan participated in the inaugural Baseball5 Asia Cup in Kuala Lumpur, where the team finished second after losing to Chinese Taipei 1 match to 2.

The Japanese team finished second with a 6–3 record after losing the final against Cuba 2 matches to 0.

[4] Japan won the 2024 Baseball5 Asia Cup, held in Seoul, South Korea, to claim their first Asian title.

The team finished the tournament undefeated with a 6–0 record and defeated Chinese Taipei 2 sets to 1 in the final game, to win the gold medal.