Four Minutes: Groundstrokes the Correct Way First thing to remember: Try and hit your initial groundstrokes deep, just inside the baseline. In fact, if the ball is a little long, great. Aim for just inside the baseline. Try to hit your first six or seven shots with plenty of depth. Don’t let a ball fall short. Pay attention to what you’re doing. If a ball lands in or near the service box, correct it and go for that baseline.