Abstract: A batting training aid includes a base, a vertically-extending brace or leg supported by the base, and a plane attached to an upper end of the brace via a joint. The brace allows for adjustment of the height of the plane, while the joint between the plane and the brace allows the plane to roll, pitch, and/or yaw to mimic optimal swing planes for different pitch locations/angles and batter heights. The training aid can incorporate a batting tee for tee work and/or a resistive medium to approximate contact during dry swings. A guide bar can be provided above the plane to prevent a hitter from swinging down on the ball. Sensors can be incorporated into the training aid to measure one or more swing metrics, such as bat speed; data collected by the sensors can be transmitted to external devices such as smartphones, tablets, personal computers, and the like.