Daiya Seto

Japanese Swimmer

Daiya Seto
Daiya Seto is a Japanese professional swimmer who specializes in individual medley, butterfly, breaststroke, and freestyle events. source: tokyoweekender

Daiya Seto is a Japanese swimmer who swims in butterfly, breaststroke, individual medley, and freestyle events. However, he is more special in individual medley and butterfly. Similarly, he has proved time and again that he is as bright as a diamond in the pool.

Moreover, Daiya has won the prestigious Asian male swimmer of the year award twice and has one Olympic bronze from the 2016 Rio Olympics. In addition, Seto is currently representing Japan in Tokyo Olympics.

Early Life, Family & Education

Daiya Seto opened his eyen on 24 May, 1994 in Moroyama, Saitama, Japan. However, the details about his family, parents, and siblings are not available in any sources as of now.

Similarly, Daiya began swimming at the tender age of 5 and participated in national swimming competitions in elementary school.

Likewise, he learned both Football and Swimming when he was a kid. On the other hand, Seto’s educational information is also in the dark.

Age, Height, Weight & Body Measurements

Daiya is currently 28 years as his birthday falls in the year 1994. Likewise, his sun sign happens to be Gemini.

Similarly, Seto has accumulated a height of 5 feet 8 inches and a weight of 72kg. Though he is a swimmer, he has maintained his body by doing regular exercises.

On the other hand, Daiya has black hair along with black eyes.

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Daiya Seto| Relationships, Wife & Kids

Furthermore, Daiya Seto tied a knot with Yuka Mabuchi. Similarly, Yuka is the daughter of well-known diving coach Takahide Mabuchi.

Daiya Seto
Daiya with his wife, Yuka Mabuchi source: Instagram

Likewise, she was also inclined towards diving and swimming from a young age. However, after getting married to Seto, she announced her retirement.

Though she stated marriage did not influence her decision. Moreover, the reason for her retirement was being tired of competing and wanting something else for herself.

Similarly, they first met at a swimming event and fell in love and they announced their wedding via Instagram on May 24, 2017.

Furthermore, Daiya and Yuka gave birth to their first daughter Yuwa on June 26, 2018. In addition, in March 2020, they gave birth to another daughter.


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A post shared by Daiya Seto (@daiya_seto)

Daiya Seto| Rumors and Controversies

However, on September 23, a Japanese news site ‘Daily Shinco’ posted a report on Seto. Similarly, according to that news, Daiya was seen with his girlfriend in a particular hotel. Likewise, the swimmer was accused of having an extramarital affair.

Furthermore, he accepted having an extra material affair and apologized to his well-wishers and family. Though, there were other girls too with whom he was having an affair.

However, all the advertisements featuring Seto were deleted. On the other hand, Daiya’s major affiliation contract with All Nippon Airways was canceled because “he was not worthy of corporate image” anymore.


Daiya Seto informed JOC and the Japan Swimming federation that he will not be the team captain for Tokyo Olympics.

Similarly, Japanese swimming officials stated that his actions violated the code of sportsmanship and harmed the honor of the federation.

Likewise, some other suspensions made by Japanese swimming officials are:

  • Suspension for participating in JSF official tournaments, training camps, and overseas expeditions within a year.
  • Suspension for the recommendation of sports promotion fund subsidy in the year 2020.
  • Attendance on Future Japan Swimming Federation education program, JOC integrity education program, etc.

Moreover, Daiya received so much hate from Japanese fans, media, and the sports circle.

In addition, he said that he does not know how to apologize. Likewise, Seto states his apology to continue swimming and restoring the trust of his family.

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Daiya Seto| Career

When he was in high school, he was a three-time winner at 400m IM at the interschool championships. Moreover, he missed his chance at London Olympics after ending up third in the japan championships.


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A post shared by Daiya Seto (@daiya_seto)

After five months, Daiya became successful in winning four crowns at the FiNa Istanbul. Likewise, he won gold in 2012, 2014, and 2016 world short-course championships.

Olympics 2020

Similarly, all the swimming fans along with him consider the Tokyo Olympics his major chance for redemption.

Moreover, he participated in 3 events in the Olympics. However, Daiya only managed to reach the finals of 200m IM.


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A post shared by Daiya Seto (@daiya_seto)

Likewise, he completed the race in 1.56.22, missing the bronze medal by 0.05 seconds.

Daiya Seto| Social Media Profile

Furthermore, Seto is quite active on social media platforms like Facebook, Twitter, and Instagram.

Facebook: 28k followers

Twitter: 181k followers

Instagram: 151k followers

Daiya Seto| Net Worth

As we know, Daiya Seto is a successful swimmer so he has a good net worth. Though, the rumors about his affairs led to many major brands cutting ties with him, sharply declining his net worth.

However, Seto’s net worth is $1 million.

Some FAQs

Does Daiya have an Olympic gold?

Similarly, Daiya has an Olympic gold.

Is Daiya Seto still suspended?

However, Daiya Seto was suspended for a year in October 2020.

How tall is the Japanese swimmer, Daiya?

Likewise, the Japanese swimmer is 5 feet 8 inches tall.

Who is Seto’s wife?

Seto has been married to Yuka Mabuchi.

Daiya Seto| Quick Facts

Full Name Daiya Seto
Native name 瀬戸 大也
Nick Name Daiya
Birthdate 24th May 1994
Age 27 years old
Zodiac Sign Gemini
Mother’s Name N/A
Father’s Name N/A
Siblings N/A
Birthplace Moroyama Town, Iruma District, Saitama, Japan
Home Town Moroyama, Saitama, Japan
Citizenship Japan
Residence Tokyo, Japan
School Saitama Sakae High School
College Waseda University
Education Sports Science
Height 174 cm/ 5’8”
Weight 72kg/ 159 lbs
Eye Colour Black
Hair Colour Black
Shoe Size N/A
Martial Status Married
Partner Yuka
Married  May 2017
Children Two Daughters ( Yuwa and Nowa)
Sport Swimming
Strokes Butterfly, Individual medley
World champion 2013 (400m IM), 2015 (400m IM)
Olympic Wins One bronze (2016)
Personal Bests 51.89 (100m butterfly), 1:48.24 (200m butterfly short course)
Club Energy Standard, JSS Moriyama
Coach Takayuki Umehara (club), Norimasa Hirai (National)
Team Team Japan
Status Active
Hobbies Watching movies
Net Worth $1 million
Affiliated Brands Air Nippon
Social Media Facebook, Twitter, Instagram
Website N/A
Merch Swimwear, Tokyo Olympics 2021
Last-Update May 2022


Written by Keshaa Perry


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