noun, noun or participle which takes 'suru'
runner left on base; leaving runners on base
Baseball term for runners remaining on base without scoring when an inning or scoring chance ends. Used as a noun and also with する for a runner being left on base.
この試合は残塁が多く、なかなか得点できなかった。
In this game, they left many runners on base and could not score easily.
九回裏、二人の走者が残塁した。
In the bottom of the ninth, two runners were left on base.
noun
remnant fort; remaining fortification
Original, rare non-baseball sense referring to a fort or stronghold that remains. In modern Japanese it is much less common than the baseball sense.
古い用法では、残塁は戦場などに残ったとりでを指す。
In older usage, 残塁 refers to a fort left behind, such as on a battlefield.