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Old 02-20-2013, 11:30 AM   #29
Join Date: Jan 2010
Posts: 1,251

You are right, the NTRP system isn't perfect. I'd certainly do things differently if I were doing it from scratch, particularly around factoring in wins/losses and not just game differential.

But remember, the primary goal of the NTRP system is to try to ensure competitive play. In the case of the first player you mention (the 4.5 with the big serve), his matches are competitive at 4.0, 4.5, and 5.0, so there isn't a need for him to be moved up or down, the goal of competitive matches has been achieved, so he is "correctly" rated.
schmke is offline   Reply With Quote