The Japanese Baseball Legislative League, a cross-party group focused on sports policy, has proposed expanding professional baseball teams to address declining youth participation, according to reports from multiple sources. The initiative, led by member Kuriyama Eiki, highlights concerns about the sport’s long-term viability while emphasizing its cultural and economic significance.
Official statements from the group, confirmed by multiple Japanese media outlets, reveal that Kuriyama has advocated for increased team numbers to revitalize interest in baseball. “Baseball is facing a critical juncture,” Kuriyama stated in a recent parliamentary session. “We must ensure children can still dream of playing professionally and that communities continue to thrive through the sport.”
Why the Focus on Expansion?
The proposal comes amid declining youth enrollment in baseball programs. Data from the Japan Baseball Association (JBA) shows a 12% drop in registered players under 18 since 2019, with similar trends reported by the National Sports Council. Kuriyama attributes this to shifting cultural priorities and competition from other sports, particularly soccer and esports.
“Baseball has always been a platform for creating people—not just athletes, but leaders,” Kuriyama said. “If we don’t act, we risk losing that legacy.” The legislative group’s report, released in March 2024, outlines potential strategies including regional team expansions and partnerships with schools to promote grassroots development.
Historical Context and Precedent
Japan’s professional baseball league, Nippon Professional Baseball (NPB), has maintained 12 teams since 2004. Expansion efforts have historically faced resistance due to financial and logistical challenges. However, recent successes in international competitions, such as Japan’s 2023 World Baseball Classic victory, have reignited debates about the sport’s future.
Comparative analysis with other leagues shows mixed results. The Chinese Professional Baseball League (CPBL) expanded from 6 to 10 teams between 2013-2021, leading to a 15% increase in viewership. Conversely, the Korean KBO League’s 2022 expansion to 10 teams saw no significant attendance gains, according to a 2023 study by the Asia Sports Economics Institute.
Stakeholder Reactions
The Japan Baseball League Players Association (JBLPA) has expressed cautious optimism. “Expansion could create more opportunities for young players,” said JBLPA spokesperson Aiko Tanaka. “But we need to ensure it doesn’t dilute the quality of competition.”

Local governments in rural regions have shown interest. The city of Kōchi, which hosted a minor league team from 1993-2007, has proposed a bid for a new franchise. “Baseball brings tourism and jobs,” said Kōchi Mayor Tetsuo Sato. “We’re ready to invest in infrastructure if the league considers our proposal.”
Financial and Logistical Challenges
Expanding the league would require significant investment. A 2023 report by the Japan Sports Business Association estimated that adding two new teams would cost between ¥15-20 billion ($110-150 million) in initial infrastructure. Revenue streams would depend on TV rights, sponsorships, and stadium development.

The Nippon Ham Fighters, one of the league’s most successful teams, have warned against hasty expansion. “We need a sustainable model,” said team president Hiroshi Yamada. “Adding teams without addressing revenue distribution could harm existing clubs.”
What’s Next for the Legislative Group?
The Baseball Legislative League plans to present its full proposal to the Japanese Ministry of Education, Culture, Sports, Science, and Technology by June 2024. The group has also requested a meeting with NPB executives to discuss feasibility studies.
“This isn’t about quick fixes,” said Kuriyama. “It’s about securing baseball’s place in Japan’s cultural landscape for the next generation.” The group’s next scheduled meeting is set for April 15, 2024, where they will review feedback from regional stakeholders.
For now, the debate over baseball’s future remains a balancing act between tradition and innovation. As Kuriyama and his colleagues continue their efforts, the sport’s ability to adapt will determine whether it remains a cornerstone of Japanese culture or faces the same challenges as other declining traditional pastimes.
Next Checkpoint: Japanese Ministry of Education, Culture, Sports, Science, and Technology to receive legislative group proposal on June 20, 2024.
Share Your Thoughts: How do you think baseball should evolve to remain relevant in Japan? Join the conversation below.