Timo Boll has a good serve (TTR System)

Timo Boll has a good serve (TTR System) ball-tracking technology table tennis Full analysis: The ITTF adopted the video table tennis refereeing (TTR) proposal at its meeting on November 27, 2021, in Houston, Texas, giving players the right to review a decision made by a referee, whether they deem incorrect. This ball-tracking technology can be now used in more official competition.