What data would I gain access thanks to the PLAY rackets (comparison with POP)? Babolat August 06, 2018 09:51 Updated Follow Related articles Do I Need a PLAY racket to use the app? Babolat App Quick Start Guide What is 100% of power for the forehands and the backhands? Why do we only have a percentage of power, and not a speed (in km/h or mph) for the forehands and backhands? Comments 0 comments Article is closed for comments.