It would really be great if Codechef can tell the reason behind doing this, what was the need of re-writing the history, I think it was just fine until the point when hybrid rating system was in place, as prior ratings were left unchanged and all new contest participation were rated according to the new system.
Can someone explain how a 7 star participant be eligible and get positive delta from div3 and div2 contests for example here paupau | CodeChef User Profile for Boobisha Chodhankar | CodeChef.
It doesn’t make sense that if someone has become 6 star according to the new rating system then why would div2 and div3 contests contribute to the ratings further.
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Hey all, I should point out that we’re seeing not only differences between the two ratings systems, but also differences in the settings of their parameters.
A high starting \sigma parameter is what enables new players’ ratings to change so fast. Topcoder does this too. Usually these changes are manageable; the edge case of users reaching ridiculous ratings after only competing in Div 3, occurred because their division placement was based on a different system (the old one). In other words, the user competed in Div 3 when really, according to the new system, they should already be in Div 1. Now that the migration is done, this will never happen again.
Another change is that the update weight parameter was decreased, because the admins want ratings to be a more reliable indicator of long-term performance. If you feel that your recent hot streak has been erased, don’t fret. Elo-MMR will magnify your next few wins in support of your streak. This momentum effect allows stability to coexist with faster updates when a true jump in skill occurs. For example, you can see ksun48’s’s new ratings accelerate in the last half of 2020, converging almost as fast as the old ratings. (With a higher update weight, Elo-MMR can converge even faster.)
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Total shit system my last rank was 34 and i have not been giving contest and you dropped my ratings by 200 what the hell is this give me my rating back
Now that I look more closely at the rating graphs, it looks like most of the complaints are from users who’ve already decided to “retire” on a hot streak. We do take complaints seriously but, if you decided to stop competing after a few lucky rounds, please don’t blame the new system…
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Upset with new rating system
Very disappointed with CC. CC is losing it’s value day by day.
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Codechef is becoming worse day by day . keep it up !!!
admin is also inactive user and I don’t know how admin judge anybody on the basis of not giving contest . what the hell is this .
I would love to say goodbye to CodeChef from my bookmark tab just like many of my competitive programmer friends.
Thank you for the contests and I feel sad to see such a mess on the site now.
It became too difficult to gain even +30 from a contest no matter how good we perform.
Don’t know what was wrong in previous rating system.
WTF, What are you doing actually ?? Because of this kind of activity, Code chef will lose a lot of participants.
Feels like I fell from a mountain!
From 6 stars all the way down to 3 stars