godan verb (-su)
win consecutive games; keep winning; have a long winning streak
Used in sports and games to describe a continuous winning streak without losing. Often implies an ongoing, unbroken series of victories.
彼は将棋で十連勝ちっ放している。
He has been winning ten consecutive games of shogi.
このチームは今シーズン勝ちっ放しだ
This team has been on a winning streak all season.