Re: Racket head speed of pros vs recs?
djez don't overestimate tennis players. The difference lies in the control, not in the actual speed or power. They are only human.
The actual challenge was HITTING A RACKET INTO A CONCRETE WALL? Not even hit a ball into a wall?
Not much technique swinging a racket into a concrete wall....one thing if you said serving or something but even at my local club rec players can serve 160-180km/h and it's not like Nadal is breaking the soundbarrier with his serves.
I'd personally take on Nadal in a "swing the racket into a concrete wall" challenge. If he even reached 1,5x my result I'd be very impressed. Most likely the difference would be 20-30% if that.