noun
last eight; quarterfinals
Wasei-eigo from 'best eight'; used in tournament contexts to refer to the round where eight competitors remain.
wasei-eigo (Japanese-coined English), from best eight
彼はテニスの大会でベスト8に入った。
He made it to the quarterfinals in the tennis tournament.
ベスト8の試合は明日行われます。
The quarterfinal matches will be held tomorrow.