Daiya Seto won the bronze medal in the men's 400m individual medley. Seto has won seven consecutive medals at the World Championships.

The Japanese swimmers won two medals at this year's competition: Akira Honda's gold medal inThe men's 200m butterfly, and Seto's bronze medal this time. The final day of the World Swimming Championships held in Doha, Qatar, was held, and from Japan, Seto, who has been training based in Australia since last fall, entered the race.