What data would I gain access thanks to the PLAY rackets (comparison with POP)? Babolat 02 June 2018 04:55 Updated Follow Related articles Do I Need a PLAY racket to use the app? Babolat App Quick Start Guide Why do we only have a percentage of power, and not a ball speed (in km/h or mph) for the forehands and backhands? What is the Feed Menu? Comments 0 comments Please sign in to leave a comment.