noun
hard tennis; regulation-ball tennis
Refers to tennis played with the standard yellow regulation ball, as opposed to soft tennis (軟式テニス) which uses a softer rubber ball. The term is mainly used in contexts where the distinction from soft tennis is relevant.
See also: 軟式テニス
彼は中学から硬式テニスを始めた。
He started playing hard tennis in junior high school.
The hardness of the ball differs between soft tennis and hard tennis.