Kosuke Hagino

Kosuke Hagino

Kosuke Hagino
Personal information
Nationality Japan
Born (1994-08-15) 15 August 1994
Tochigi, Japan
Height 175 cm (5 ft 9 in)[1]
Weight 70 kg (155 lb)
Sport Swimming
Stroke(s) Backstroke, freestyle, medley

Kosuke Hagino (萩野公介 Hagino Kōsuke, born 15 August 1994) is a Japanese swimmer who competes in the individual medley and 4×200m freestyle relay.[2] He had the best time in the 400m individual medley heats at the 2012 Summer Olympics with a time of 4:10.01, an Asian record. He went on to claim the bronze medal in the final, placing third behind gold medalist Ryan Lochte of the United States and silver medalist Thiago Pereira of Brazil. At the 2013 World Championships, he placed 2nd in the 400m freestyle with a time of 3.44.82.

2012 Summer Olympics

Hagino made his big international breakthrough at the 2012 Olympics held in London. Hagino qualified first in the 400 m individual medley heats with a new Asian record of 4:10.01, and would go on to win his first international medal with a bronze in the event and again lower his Asian record to a 4:08.94.

2013 World Aquatics Championships

Coming into the Championships Hagino had qualified for a full slate of events including the 200 m freestyle, 400 m freestyle, 100 m backstroke, 200 m backstroke, 200 m individual medley and the 400 m individual medley. In his first event the 400 m freestyle Hagino was able to pick up his first World Championships medal with a silver and a new Japanese record of 3:44.82. He would be back in finals action on day 3 of the meet of where he competed in his first final of the night, the 200 m freestyle. Despite being in medal contention, Hagino was caught in a close race and was locked out of the medals in fifth place with a new personal best time of 1:45.94. Nearly an hour later, and he came to swim the final of the 100 m backstroke and place seventh in 53.93, much slower than his Japanese nationals time of 53.10 which would have won him a silver medal. On day five, after qualifying for the final, Hagino won another silver medal in the 200 m individual medley. His time of 1:56.29 was about half a second off his Japanese nationals time of 1:55.74, but it was his second medal of the meet. The following day he would lead off Japan for the 4 x 200 m freestyle relay, and was able to take off a hundredth of a second off his 200 m free time from day three, swimming a 1:45.93. He also placed fifth in the 200 m backstroke final that night, finishing in 1:55.42. On the final night of competition, despite coming in as the favorite, Hagino was again only able to manage fifth place, finishing in 4:10.77. Although only winning two medals in his seven events, he was the only swimmer at the meet to swim six individual events.


2014 Pan Pacific Championships

He won gold in both the 200 m and 400 m individual medleys.

2014 Asian Games

He was announced as the Most Valuable Player (MVP).

Personal bests (long course)

As of September 22, 2014.
Event Time Venue Date Note(s)
100 m freestyle 48.75 Japan
200 m freestyle 1:45.23 Incheon September 21, 2014 NR
400 m freestyle 3:43.90 Japan April 12, 2014 NR
100 m backstroke 53.08 Japan April 11, 2014
200 m backstroke 1:54.77 Japan January 25, 2014
200 m medley 1:55.33 Japan September 6, 2014 AS
400 m medley 4:07.61 Japan April 11, 2013 AS


  1. ^ "Japanese Medalists in London 2012 Olympics". joc.or.jp.  
  2. ^ "Kosuke Hagino". London2012.com. Retrieved 28 July 2012.