What is mass and swing weight?
Mass is better referred to as strung weight or stationary weight of the racket. As it sounds, this is the total weight of the racket when strung and laying still. The swing weight of the racket is how heavy the racket feels when you swing it. The more weight you have distributed to the head of the racket, the higher the swing weight will be. If you have more of the racket’s weight close to the handle, the swing weight will be lower. Also, extra-long racquets have a higher swing weight since there is more weight further from your hand due to the longer frame.
