In racket sports a groundstroke, or ground stroke, refers to a forehand or backhand shot that is executed after the ball has bounced on the court.
The term is commonly used in the sports of tennis and pickleball, and is counter to a volley shot which is taken before the ball has bounced.
Groundstrokes in tennis are usually hit from the back of the court, around the baseline.
Some characteristics of groundstrokes are: depth (how close the ball lands to the opponent's baseline), consistency (the tendency of groundstrokes to not drop short or into an opponent's strike range in rallies with many groundstrokes), speed (how fast it travels in the air), pace (the ball's behavior after it bounces on the opponent's side), trajectory and angle.
If a "good groundstroke" is to be played, it would generally have a combination of the above characteristics to produce a shot that is difficult for the opponent to return.