The Tōkyō Yūshun (東京優駿), also called the Japanese Derby (日本ダービー, Nippon Dābī) is a Grade 1 flat horse race in Japan for three-year-old thoroughbred colts and fillies run over a distance of 2,400 metres (approximately 1 mile 4 furlongs) at the Tokyo Racecourse, Fuchū, Tokyo in late May or early June.
Since 2010, the Tokyo Yūshun (along with several other JRA Japanese domestic Grade 1 races, including the other Japanese classics such as the Satsuki Shō and the Kikuka Shō) is open to international competition due to Japan's inclusion in the International Federation of Horseracing Authorities' ICS Part I category, in which all graded black-type races in the JRA calendar are open to international competition.
Kyoto Shimbun Hai and NHK Mile Cup provides priority-entry-rights if these horses place first or second.
[4] The Kyoto Shimbun Hai is officially considered a step race and only gives priority-entry-rights to horses registered in NAR.
The NHK Mile Cup, the only non-Triple Crown three-year-old GI horse race, is also a step race but only provides priority-entry-rights to horses registered in NAR,[4] has gained importance in recent years as horses such as Tanino Gimlet (2002), King Kamehameha (2004, won) and Deep Sky (2008, won) participated in that race and would eventually win the Derby.