It will be interesting to see if the men's 100-meter butterfly will set a new record in Japan on the 9th of the 7th day of the competition, which is the representative selection of the one-shot competition with the ticket of the Tokyo Olympics.

It is expected that the record will be set for the first time in 12 years, centered on Takeshi Kawamoto, who set a time in line with the Japanese record in the semi-finals on the 8th.

The Japanese Swimming Championships held at the Tokyo Aquatics Center in Koto-ku, Tokyo broke the standard dispatch record in the final, and if they are in second place, they will be nominated as representatives of individual events of the Tokyo Olympics.

On the 7th day, the final of the 3rd event will be held for both men and women.

In the men's 100-meter butterfly, 26-year-old Kawamoto, who has a characteristic of speed, set 51:00 in the semi-final on the 8th, which was the same as the Japanese record in the high-speed swimsuit era in 2009, and advanced to the final at the top of the overall team.

In addition, 24-year-old Naoki Mizunuma, who experienced the adult world championship, and Katsuhiro Matsumoto, a 200-meter freestyle Japanese record holder, also participated as part of the strengthening, and won the Japan Championship in December last year for the first time in this event. It is expected that the record will be updated along with the fight for the national team.

In addition, Rikako Ikee, who has decided the representative offer in the second event, has entered the women's 50-meter freestyle where the qualifying and semi-finals are held.