Reverse swing is different to other types of swing as it moves in the opposite direction. In a conventional swing, the ball will swing towards the rough side of the ball whereas in the reverse swing the ball will swing towards the shiny side of the ball. The ball moves from one side to the other due to having less air resistance.Faster speed on the smooth side leads to air being vanished more quickly on the smooth side which creates a low pressure region. Reverse swing can only occur when both sides of the ball has turbulent flow which will only occur if the ball has reached a certain speed. Research has demonstrated that the ball should be travelling at an incredible speed of 85 mph in order to achieve reverse swing which is a very difficult to do. . The reverse swing happens late in a ball's trajectory as opposed to a normal swing because the ball has to first accumulate considerable portion of air to achieve turbulence.
