noun
inter-class competition; class match
Wasei-eigo term used in school contexts for a sports competition between classes, especially ball games.
wasei-eigo (Japanese-coined English), from class match
来週のクラスマッチに向けて、毎日練習しています。
We practice every day for the inter-class competition next week.
クラスマッチで優勝したクラスには賞状が贈られます。
The class that wins the inter-class competition receives a certificate.