also: さよならまけ
noun
walk-off loss; losing on a walk-off
Baseball term for a loss caused by the opposing team's walk-off hit, typically a home run. Used in sports reporting and fan discussions.
昨日の試合はサヨナラ負けで、本当に悔しかった。
Yesterday's game was a walk-off loss, and it was really frustrating.
The ace pitcher gave up the hit and they suffered a walk-off loss.