大おお試し合あい

noun

big match; important game

Refers to a high-stakes or highly anticipated sports match or competition.

• 明日あしたはいよいよ大おお試し合あいだ。

  Tomorrow is finally the big match.

• 彼かれは大おお試し合あいでいつも実じつ力りょくを発はっ揮きする。

  He always performs well in important games.