From the Super Mario Wiki
The Tee Box is the place from where the player must first hit the ball with the Golf Club in the Mario Golf series. There is a Tee Box is every level and there are two kinds of these, the "Front Tee Box" and the "Back Tee Box". The former is closer to the green, while the latter is far away from it. The shots made from the Tee Box are referred to as "Tee Shots", and they are the first shot of the hole.