hitting left-handed
Used in racket sports and baseball for a player who swings from the left side (right-handed batter stance in baseball, or left-handed swing in tennis/badminton).
See also: 右打ち
He is a left-handed hitter in tennis.
In baseball, there are many left-handed batters.
hitting to left field
Baseball term for a hit directed toward left field, regardless of the batter's handedness.
See also: 右打ち
He hit to left field and dropped it in front of the left fielder.
Compound of 左 (ひだり, 'left') and 打ち (うち, 'hitting'), the nominalized form of 打つ (うつ, 'to hit').