noun
stealing third base
Baseball term for a runner advancing to third base during a pitch without the batter hitting the ball.
ランナーが三盗を試みたが、キャッチャーの好送球でアウトになった。
The runner attempted to steal third base, but was thrown out by the catcher's good throw.
Abbreviation of 三塁盗塁 (さんるいとうるい), 'third base steal'.