The Japanese style has the longest history with the largest number of gymnasts, coaches, and competitions.
Code of Points (Domestic)
The Japanese Federation has created and used its Code of Points for many years.
People
Leadership in the Federation: Kotaro Yamada
National Champion (Individual): Kosuke Hori at Takada RG (November 2021)
National Champion (Group): Aomori University (November 2021)
Articles
Interview: With Sarah Hodge About Japan’s Men’s Rhythmic Gymnastics (MRG) (In Japanese)
Bakuten!! Japanese men’s rhythmic gymnastics soars on to the world stage
Videos
Japan Men’S RG Channel
Search Japanese Men’s RG on YouTube
Many videos of young gymnasts (4 years old and up) are uploaded
Personal Websites
Internationalize Men’s Rhythmic Gymnastics