In the qualifying for the men's 400-meter medley relay at the Tokyo Olympics, Japan advanced to the final in 5th place overall.

In Japan, the first swimmer was Ryosuke Irie, the second swimmer was Tatsuya Takera, the third swimmer was Naoki Mizunuma, and the fourth swimmer was Katsumi Nakamura. I made it to the final in 5th place.

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