PursuitOfHappiness's blog

Rating predictor can not predict?
By PursuitOfHappiness, 3 years ago, In English

Previously we used to see,if rating predictor predict +90 delta then finally codeforces would give 100+ delta. But now if rating predictor predics +90 delta codeforces are giving +80 delta.I think, codeforces rating calculation have just changed.

Anyone facing the same??

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Comments Comments (8)
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3 years ago, # |
  Vote: I like it -9 Vote: I do not like it

yea I have noticed past 3 4 contests that predictor is not working fine nowadays.

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3 years ago, # |
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I guess the rating calculation system has changed a little bit because I've observed that when I got around same rank(and rating) in a previous div 2, I got +19 but in the Global Round 16 instead of getting a positive delta(according to cfpredictor) , I got -4

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    3 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    thats because in div2 rounds , the rating is calculated on the basis of only div2 participants even though the rankings show div1+div2. but in global rounds div1 is also included

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      3 years ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      I'm talking on the basis of rankings only for div2. Whereas in the global round the rating increase should be higher as it has both div1 and div2 participants.

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3 years ago, # |
  Vote: I like it +6 Vote: I do not like it

Rating predictor is a ratist, won't calculate it for newbies anymore. Anyways enjoy positive delta while you still can.

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3 years ago, # |
  Vote: I like it +8 Vote: I do not like it

Use carrot instead, it's better

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