一投

いっとう【一投】

a single pitch [toss].

●一投一打 (every) single pitch and hit

・スター選手の一投一打にファンは一喜一憂する. Fans' emotions rise and fall with every throw or swing of the bat of the star players.

・両チームの一投一打にスタンドが沸いた. The stands went wild with every pitch, every hit by either side.