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Old 01-22-2013, 09:58 PM   #20
Join Date: Jan 2010
Posts: 1,251

Originally Posted by OrangePower View Post

Well, it would be simple math and as such easy to understand if USTA published their algorithm... but of course they don't, and for good reason, so we are all left to speculate on how certain results came to be. Some people's guesses (like schmke) are perhaps more educated and better than others', but ultimately still a guess.
You are right, I'm guessing, but given how accurate I've been in agreeing with bump ups/downs, I think my estimates are pretty accurate.

Originally Posted by OrangePower View Post
Also, just because the current algorithm kinda works does not mean that it is the most optimal way to calculate ratings. So it is fair game to challenge it. For example, I happen to think that an ELO-based algorithm that adjusts a player's rating after every set would work even better.
I agree that the algorithm is not necessarily the best. I'd certainly do some things different if I was doing it from scratch. Tell me more about updating a rating after every set though. If you were supposed to win a set 6-4 but win 6-2, the participating players ratings are updated and you are supposed to win the 2nd set 6-3 or something like that?
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