MikeMirzayanov ------------------ Few hours ago, the rating has been rolled back for the last three contests. But, what the thing is that the rating has been decreased to that what have it been before the roll backs! How can this be possible if you haven't cheated or hacked or anything else! Logically thinking our rating should definitely increase after the roll backs as our rank will improve after the cheaters are detected and thrown down in the ranking. I hope there must be again redistribution of rating for the last three contests which will give us a fair rating what we deserve! Thank You Codeforces! MikeMirzayanov
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Yes, I agree with you! My rating has also been decreased by about 30 after the roll backs which actually never happens!
When cheaters are removed, there might be many cheaters below you so your relative ranking is worse now, and therefore you will lose rating. It's ok for that to happen
But those cheaters will be just moved down to the last in the ranking, they will not be completely removed from the contest ranking. I have seen many ID's who get the last rank after they are caught!
The problem is in a certain contest my rank increased but the + delta got decreased
Yeah it's ok. Rating is not about your rank, it's about your rank related to others of different rating. It's more complex than "I got a good rank". if there's a huge decrease there might be a bug as this happened before, but in general it's ok to lose rating after rollback
I remember few months ago the same thing happened. I was at my max rating 1061. After roll back, my rating decreased to 1007 so as max rating. But, next day agaain ratings were roll backed and this time my rating reached 1068 so as my max rating! Hope same happens this time!
Auto comment: topic has been updated by streakerx (previous revision, new revision, compare).
It's a glitch in the rating system once again, my friend with fresh acc got +30 after the rollback. I'm a little cocerned that such glitches started to occure much more frequently now.
Guys, if you also have the same experience share it here so that we get to clear point of what has happened is a bug or normal!
I just mentioned. Few months ago the same happened but it was later corrected rating was increased by 10 as it was before the roll back.
My rating also decreased after the rollback. My rating before rollback was 1369 now it is 1351. I noticed that the delta increase in div4 is reduced. But why that happens?? Is this a glitch or anything??
What is Delta Increase?
It's 37 in that div4 but now it is showing 19. 18 decrease in total. Dont know why
Oh yeah yeah.. same happened with me! Firstly it was -13 and now it is -25.
Hope so this is a glitch because this has happened earlier also but after some days the original rating got back.