Swimming 200m butterfly Daiya Seto sets new record in Japan at 18:55 on January 18
The swimmer Daiya Seto entered the men's 200m butterfly in the first race, marking the Japanese record of 1:52:53 and winning.
Seto set a new record of 0 seconds 44 by Takeshi Matsuda at the 2008 Beijing Olympics.
Seto also won a silver medal in this event at the World Championships last year.