prefectural senior high school; public senior high school
Interscholastic Athletic Meet; inter-school athletics competition
National High School Baseball Tournament (held annually in August at Koshien Stadium); Summer Koshien
National High School Baseball Tournament (held annually in August at Koshien Stadium); Summer Koshien
Certificate for Students Achieving the Proficiency Level of Upper Secondary School Graduates; Japanese high-school equivalency examination
Japan High School Baseball Federation
National High School Baseball Invitational Tournament (held annually in March at Koshien Stadium); Spring Koshien
prefectural senior high school (in Kyoto and Osaka prefectures); public senior high school (in Kyoto and Osaka prefectures)
prefectural senior high school (in Tokyo Metropolitan Area); public senior high school (in Tokyo Metropolitan Area)
prefectural senior high school (in Hokkaido); public senior high school (in Hokkaido)
All Japan High School Athletic Federation
Tokyo Metropolitan Koishikawa High School
Tokyo Metropolitan Koishikawa High School
Tokyo Nohgei Agricultural High School