Keita Hattori

2014 The youngest (age 6, not yet in school) to earn Ski Association of Japan Level 1; also featured in Ski Graphic magazine
2016 Mathematical Olympiad Kids BEE Gold Award and Nagao Award (placed 1st in both preliminaries and finals)
2018 Received the Bronze medal and Research Paper Award in the Japan Junior Mathematics Contest (9th grade and below category)
(Paper title: Some qualities and their expansion related to the Fibonacci series and exponents)
2019 Gold medal in the Mathematical Olympiad
2019 Received the Award of Excellence in the team competition of the Japan Junior Mathematics Contest (9th grade and below category)
2019 Amateur 6th dan in go
2020 MENSA member
2020 Won first place at the 17th Hironaka Cup National Junior High School Mathematics Competition
2021 Appeared on the “Miyaneya” live afternoon TV show in a segment on gifted young people
2022 Received the Award of Excellence in the 25th Japan Junior Mathematics Contest
2023 Award of Excellence in the Tokyo Junior High School Music Composition Contest
2023 Received the Guinness World Record for most single stroke roll drumbeats in a minute using drumsticks (breaking his own record)
2023 Received the Guinness World Record for most single stroke roll drumbeats in 30 seconds using drumsticks