What type of spin did my opponent use

Hi Alois and Jeff,

Yesterday on my competition, I faced an opponent that used the rubber like this

When he returned my strokes, I couldn't made the ball up through the net, I expected that it was a backspin. So on the second set, I tried to lift the ball up, but the ball was flew out of the table. What type of spin and rubber did he used?

Thank you very much
With kind regards,
Archel

Hi Archel,

It looks like Long Pimples.  If it is then the rubber would have been reversing the spin.  So when you topspin it would come back with backspin and vice versa.