on-base percentage

(baseball) The frequency with which a hitter successfully reaches first base.

Japanese Meaning

出塁率: 野球において、打者が打席から一塁に達する頻度を示す指標を意味します。

Her on-base percentage climbed steadily after she focused on plate discipline and taking more pitches.

選球眼を磨いて球を見送ることを増やしてから、彼女の出塁率は着実に上がった。

Sense（1）

(baseball) The frequency with which a hitter successfully reaches first base.

on-base percentages

（ plural ）