Japan had a very long tradition in rhythmic gymnastics. Since they first started in 1971, Japanese group never finishing lower than 10th (except in 2003, 16th) at an AA World Championships. In 2019, they became World Champion with 5 balls for the first time. Japan had and still has notable gymnasts with Mitsuru Hiraguchi, Sakura Hayakawa, Kaho Minagawa, Sumire Kita and Chisaki Oiwa. Other countries in East Asia began its following and interest in the sport having gymnasts in South Korea with Shin Soo-ji, Son Yeon-jae, and in China with Zhong Ling, Sun Dan, Deng Senyue, Liu Jiahui, Shang Rong and Zhao Yating doing well against the traditional rhythmic gymnastics powerhouse countries. North Korea has had success in group rhythmics gymnastics in the 1970s to the early 1990s and individual rhythmic gymnastics with Sun Duk Jo and Myong Sim Choi.