Entertainment · Film · 2 hrs ago
‘Diamond Diplomacy’ Traces Baseball’s Role in Japan-US Relations
The documentary ‘Diamond Diplomacy’ traces 150 years of baseball in Japan and its ties to relations between Japan and the United States.
Directed by Yuriko Gamo Romer, it follows the sport from its introduction to Japan in 1872 by an American educator to the rise of Japanese players in Major League Baseball.
The film highlights Masanori “Mashi” Murakami, the first Japanese-born player to play in the major leagues, and also covers the later rise of Shohei Ohtani.
It looks at visits by American teams, including Babe Ruth’s 1934 tour, as well as baseball played by Japanese-Americans held in wartime camps.
The documentary connects baseball with race and postwar prejudice, including the different treatment of Black and white visiting teams in Japan.
More than half of a $600,000 grant for the film was cancelled in April 2025, and former diplomat Glen S. Fukushima contributed $300,000 to help complete it.
The film screened ahead of its official Japan premiere at the Tokyo International Film Festival.
Diamond Diplomacy examines 150 years of Japan-US relations through the history of baseball in Japan.
Directed by Yuriko Gamo Romer, the documentary follows baseball from its introduction to Japan in 1872 to the success of Japanese players in Major League Baseball.
The film includes the story of Masanori “Mashi” Murakami, the first Japanese-born player in Major League Baseball.
Its subjects include baseball tours, Japanese-Americans’ experiences, race and geopolitics.
After more than half of a National Endowment for the Humanities grant was cancelled in April 2025, former diplomat Glen S. Fukushima contributed $300,000 to help finish the film.
- Who
- Director Yuriko Gamo Romer and the people whose stories appear in her documentary.
- What
- Diamond Diplomacy traces baseball’s history in Japan and its role in Japan-US relations.
- When
- The film was screened before its official Japan premiere; the screening date is not stated.
- Where
- Tokyo International Film Festival.
- Why
- The documentary examines Japan-US relations, history, geopolitics and race through baseball.
This story does not have two clearly opposing sides.
An American educator introduced baseball to Japan.
Babe Ruth toured Japan with an all-star American League team.
Masanori “Mashi” Murakami made his Major League Baseball debut for the San Francisco Giants against the New York Mets at Shea Stadium.
More than half of the film’s National Endowment for the Humanities grant was cancelled.
Diamond Diplomacy was screened at the Tokyo International Film Festival.
- Director
- Yuriko Gamo Romer
- Baseball introduced to Japan
- 1872
- First Japanese-born MLB player
- Masanori “Mashi” Murakami
- Murakami’s MLB debut
- September 1964, San Francisco Giants
- Original NEH grant
- $600,000
- Contribution to finish the film
- Glen S. Fukushima gave $300,000
What people are saying
But it was just coincidence. I started researching this film 12 years ago and it took me years of making money and raising money to fund it.
Japanese baseball is older than judo,