noun
leading hitter; batting champion
Baseball term for the player with the highest batting average in a league or tournament.
彼は今シーズン、首位打者を獲得した。
He won the batting title this season.
首位打者争いは最終戦までもつれ込んだ。
The race for the leading hitter went down to the final game.
Compound of 首位 (top position) and 打者 (batter), a straightforward baseball term.