Legal serve

I saw in the video by Jeff that in a serve, the ball must be tossed straight up, yet, I saw in many videos, on Pingskills and international competitions in which the balls were tossed sideway backwards. So what is the legal boundary?

Hi Sidney,

The rule says that you need to throw it up almost vertically.  In tournaments you tend to get away with quite a lot.  It is a rule that needs some tightening up.