We have developed a video analysis method of shoot motion in basketball formation of practice. Our method can estimate accurately the position and movement of players from practice videos, and judge whether the player's shoot has succeeded. And by combining these, it is possible to estimate the shoot timing of players. Finally, it is possible to calculate the shoot probability by each positions. We evaluated the proposed method and also verified its usefulness. By this method, basketball formation practice and shoot practice can be performed efficiently at the same time.