2021, Ideguchi Takashi, Hashiran ka! Fukuoka daiichi koko danshi basukettoborubu no ryugi [Streak! The path of Fukuoka daiichi boy’s high school basketball], page 10:
Fukuoka daiichi no basuketto ga wazuka ni mietekita Nisen'yon-nen Shimane intāhai yūshō (nochi ni hennō), Uintā Kappu hatsu-shutsujō Nisengo-nen Chiba intāhai besuto yon, Uintā Kappu yūshō
Fukuoka daiichi basketball comes into view 2004: Shimane inter-high school champions (later repeated), first appearance in Winter Cup 2005: Chiba inter-high school top four, Winter Cup champions
(especially) a competition held by the All-Japan high school sports association
2021 October 30, “Dejitaru bukatsu mo ‘intāhai’ o! Shien no kentō stāto [An ‘Inter-high’ for digital clubs! Start of support discussions]”, in Yahoo! News[1], archived from the original on 2021-10-30:
「甲子園」「インターハイ」のような競技や発表の場も作り、企業や地域が支援しやすい環境を目指す。
“Kōshien” “Intāhai” no yō na kyōgi ya happyō no ba mo tsukuri, kigyō ya chiiki ga shien shi yasui kankyō o mezasu.
The aim is to create a site similar to Koshien or Inter-high for conferences or presentations, making it easy for businesses or regional authorities to offer support.