The key to acquiring this important skill in table tennis is to carefully watch your opponent’s racket when it makes contact with the ball.

If your opponent’s racket is moving from:

Low to high ― the spin is topspin
High to low ― the spin is backspin
Their left to right ― the spin is right sidespin
Their right to left ― the spin is left sidespin2. Compensate for the spin with your racket angle
If topspin, angle your leading racket face down and contact the ball above its center
If backspin, angle your leading racket face up and contact the ball below its center . for any information you van always visit the link http://pingpongball.site.pro/