USTA Expired rating question

[J_R_B]

This was of interest to me at one point since I think a 3.5 C rating is like a lead weight that pulls down progress.

Not sure if or how the numbers would work, but seems a 3.5 playing up in a 4.0 league would have a lower rating than a 4.0 S getting verified with 5 matches.

So say a 3.5 starts at 3.40 and then a 4.0 S

They both play the exact same 5 matches in a 4.0 league and scores are as follows (dubs):

Match rating/score
3.80 / 7-5, 6-2 W
3.45 / 4-6, 1-6 L
3.32 / 4-6, 3-6 L
3.60 / 5-7, 3-6 L
3.65 / 7-5, 0-6, 0-1 L

Unless a 3.5 playing up has some rating factor mixed into the match score, I beleive the 4.0S would come out with a higher rating in the end with exactly the same play.

As a general answer, yes, I'd expect the 3.5C playing up to have a lower DNTRP, but it's not a guarantee because there is an order dependency to the ratings, and the 4.0 S player's first two matches are not weighted against past experience, so if those matches are lower rated than the 3.5 C's DNTRP, it will put the 4.0 S lower. In the above example, if you change the order of the matches so that the two 3.5 rated matches are first (i.e. the 3.32 and 3.45), then it's possible the 4.0 S will end up with a lower DNTRP than the 3.5 C after those two.