National records - Japan - men - senior










NR-JPN 400 metres progression

44.78 - 1 - Susumu Takano - JPN - 16/06/1991 - Tokyo, JPN
44.90 - 5 - Susumu Takano - JPN - 26/09/1988 - Seoul, KOR - 24.OG/sf1
45.00 - 2 - Susumu Takano - JPN - 25/09/1988 - Seoul, KOR - 24.OG/qf4
45.00 - 1 - Susumu Takano - JPN - 01/10/1986 - Seoul, KOR
45.30 - 2 - Susumu Takano - JPN - 30/08/1985 - Kobe, JPN