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Naoki MIZUNUMA
Sport Swimming
NOC Japan   
GenderMen
Born13 Dec 1996 in Mooka, JPN
Height1.81 m
 Human Interest 
Further Personal Information
Residence
Niigata, JPN
Sport Specific Information
Club / Team
Niigata University of Health and Welfare: Japan
Further Personal Information
Higher education
Health Studies, Sports Science - Niigata University of Health and Welfare: Japan
Sport Specific Information
Why this sport?
He liked playing in water, particularly in a pond at his grandfather's house, and became interested in swimming while observing carp.
General Interest
Ambitions
To win multiple medals at the 2024 Olympic Games in Paris. (pref.tochigi.lg, 01 Oct 2021)
Awards and honours
In 2021 he received the Mooka City Special Honor Award in Japan. (city.moka.lg.jp, 01 Jan 2022)

In 2021 he received the Tochigi Prefecture Sports Achievement Award in Japan. (pref.tochigi.lg, 01 Oct 2021)

In 2019 he received the Mooka City Special Achievement Award in Japan. (tokyo-np.co.jp, 26 Jun 2019)
Sport Specific Information
Name of coach
Yoshimitsu Shimoyama [club, national], JPN
When and where did you begin this sport?
He began swimming at age six in Mooka, Japan.
Further Personal Information
Occupation
University Staff
Languages
Japanese
General Interest
Milestones
He became the first male swimmer representing Japan to win a medal in the 100m butterfly at the world championships by claiming silver at the 2022 edition of the tournament in Budapest, Hungary. (SportsDeskOnline, 22 Jul 2022; swimswam.com, 24 Jun 2022)

 Competition Highlights
Olympic Games
Rank Year Venue Event Result
10 2021 Tokyo, JPN 100m Butterfly 51.46
6 2021 Tokyo, JPN 4 x 100m Medley Relay 3:29.91
World Championships
Rank Year Venue Event Result
Heats 2023 Fukuoka, JPN 50m Butterfly 23.75
19 2023 Fukuoka, JPN 100m Butterfly 51.93
2 2022 Budapest, HUN 100m Butterfly 50.94
20 2022 Budapest, HUN 50m Butterfly 23.60
Heats 2022 Budapest, HUN 4 x 100m Medley Relay 3:34.17
7 2022 Budapest, HUN 4 x 100m Medley Relay 3:45.28
Semifinal 2019 Gwangju, KOR 100m Butterfly 51.71
Heats 2019 Gwangju, KOR 50m Butterfly 23.74
4 2019 Gwangju, KOR 4 x 100m Medley Relay 3:30.35
Heats 2019 Gwangju, KOR 4 x 100m Medley Relay  
World Cup
Rank Year Venue Event Result
8 2023 Athens, GRE 100m Butterfly 52.70
1 2023 Athens, GRE 4 x 100m Medley Relay 3:36.09
4 2019 Tokyo, JPN 100m Butterfly 52.00
1 2019 Tokyo, JPN 4 x 100m Medley Relay 3:44.75
8 2018 Tokyo, JPN 50m Butterfly 23.17
2 2018 Tokyo, JPN 4 x 50m Medley Relay 1:40.62
7 2017 Eindhoven, NED 200m Butterfly 1:55.94
4 2016 Tokyo, JPN 4 x 50m Medley Relay 1:42.49
Asian Games
Rank Year Venue Event Result
4 2023 Hangzhou, CHN 100m Butterfly 51.97
9 2023 Hangzhou, CHN 50m Butterfly 24.01
3 2023 Hangzhou, CHN 4 x 100m Medley Relay 3:32.52