The men's 400 metre freestyle competition at the 2018 Pan Pacific Swimming Championships took place on August 11 at the Tokyo Tatsumi International Swimming Center. The defending champion was Park Tae-hwan of South Korea.
The men's 400 metre freestyle competition at the 2018 Pan Pacific Swimming Championships took place on August 11 at the Tokyo Tatsumi International Swimming Center. The defending champion was Park Tae-hwan of South Korea. (en)
The men's 400 metre freestyle competition at the 2018 Pan Pacific Swimming Championships took place on August 11 at the Tokyo Tatsumi International Swimming Center. The defending champion was Park Tae-hwan of South Korea. (en)