Naoyuki Daigo (醍醐 直幸, Daigo Naoyuki; born 18 January 1981 in Tokyo) is a retired male high jumper from Japan. His personal best jump is 2.33 metres, achieved in July 2006 in Kobe. This was the Japanese record until February 2019, when Naoto Tobe broke it by two centimetres.
Source: “Naoyuki Daigo”, English Wikipedia (CC BY-SA 4.0), excerpt