is a Japanese karateka of the Shotokan style.
In 2017, she won the Funakoshi Gichin Cup for kumite. She has reached the 5th dan in the Japan Karate Association (JKA) system.
She is currently an instructor with the JKA.
Biography Mai Shiina was born in Tokyo Prefecture, Japan on February 23, 1988. She began practicing karate at the age of four, and later attended Takushoku University. In 2025, she changed her surname to Miyashita. Her motto is "see perfection of character".
Competition Mai Miyashita has had considerable success in karate competition.
Funakoshi Gichin Cup Kumite Winner (1): 2017 (Ireland) Runner-up (1): 2014 (Japan) JKA All Japan Karate Championship Kata Third place (1): 2021 Kumite Winner (4): 2011, 2015, 2016, 2021 Runner-up (3): 2013, 2014, 2018
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