The Japan Open, in which top swimmers compete, opened on the 1st, and Daiya Seto won the men's 400-meter individual medley.
The swimming competition "Japan Open" will be held at the Tokyo Tatsumi International Swimming Center in Koto Ward, Tokyo, for a schedule of 1 to 4 days.
Of the competitions held on the first day, Seto, a representative of the Tokyo Olympics, participated in the final of the men's 400m individual medley.
In the second half, Seto took the lead in the breaststroke and held on to the lead to win the race with a time of 4:10.14.
Seto plans to participate in the short course world championships to be held in Australia from the 13th of this month, and said, "I didn't have a good sense of swimming, but I wanted to stimulate myself for the short course world championships, so I swam with my heart. At the end, it was so hard that I couldn't move for the first time in a long time, so I think it was a good stimulus."
Also, in the women's 100m breaststroke final, Reoki Aoki, the Japanese record holder in this event, competed, and although she did not reach her goal of 1:05, she was 1:06. We marked 11 and won.