The word tanking, in terms of sport, would be used to describe a bad performance
Tanking is the act of giving up a match or "throwing it away", losing intentionally or not competing.
I tanked my match so bad!
She was tanking her match.
He tanked the match after losing the first set.
They tanked their match because they got angry with the referee/umpire.
Prices shown in USD.
邮件由 email@example.com 发出。我们决不会发送垃圾邮件。