CFC Bonus Points

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  • #31
    Re: CFC Bonus Points

    Yes, there will be some players earning bonus points who lose them again later. There will be many more who live up to their new ratings. The health of the overall system isn't judged by the results of just a few players.

    Bindi is correct that CFC and FIDE ratings differ greatly for some of our strong players. That has nothing to do with the new bonus point system. If he believes we should chop those ratings down to line up with FIDE, I'd suggest he work the issue through the masters representative and if the masters agree with Bindi, we can put this on the agenda for the next governors meeting.
    Paul Leblanc
    Treasurer Chess Foundation of Canada

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    • #32
      Re: CFC Bonus Points

      Originally posted by Bindi Cheng View Post
      For example, take a look at this chart - http://chess.ca/players?check_rating...320&key=121013
      He's been a consistent 1900 player for most of his young life but suddenly he has a break-out tournament where he scored 5.5/6 and a 2300 performance. Now, instead of just jumping 100 or 150 points, he gains a whopping 300 points. It's as if his rating is still provisional and his performance rating is counted more than his lifetime of results. That math is just ridiculous.
      I think that example you gave was a very bad one. If you see who he beat (2260, 2170, 2170, 2100), tied (2200), then you would see he definitely deserves to be around the ~2170 rating that he got from this tournament.

      I don't know about you, but I don't know any 1900, or even 2000/2100's who could perform this well against very good people.

      In this example the rating system did its job, he is not underrated nor overrated anymore.

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      • #33
        Re: CFC Bonus Points

        Originally posted by Matija Elez View Post
        I think that example you gave was a very bad one. If you see who he beat (2260, 2170, 2170, 2100), tied (2200), then you would see he definitely deserves to be around the ~2170 rating that he got from this tournament.

        I don't know about you, but I don't know any 1900, or even 2000/2100's who could perform this well against very good people.

        In this example the rating system did its job, he is not underrated nor overrated anymore.
        he may arguably be playing at the 2170 rating level but to have that decided in only 5 games is questionable

        what do you do next time he has this performance again? put him up say 200 points? that would make him 2370 and so on

        I think that is called ratings inflation, short term performance rating tells you how you have performed over 5 games but your rating is supposed to take time to catch up to your performance ratings so that you have to prove that in the medium term you really are that rating, to get a GM rating is supposed to require a high level performance over at least the required number of games for example, so to become a GM you really do need to play a lot and prove yourself

        the FIDE system would never cause this kind of rating jump for a non-provisional player over such a small sample of games, unless of course he beat 4 GMs and drew 1

        of course European tournaments are normally 7 to 10 rounds so even in a single tournament your performance rating is vigorously tested
        Last edited by Zeljko Kitich; Sunday, 14th October, 2012, 12:06 PM.

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        • #34
          Re: CFC Bonus Points

          Originally posted by Bob Gillanders View Post
          Bindi, you are wrong. ;)

          I was going to explain why, but I have decided it would be a waste of my time. A lesson learned arguing with Vlad over climate change. He is wrong too, but lets not go there.

          .
          the mighty Bob has spoken, Bob says you are wrong

          don't ask why, just know that you are wrong because Bob says so :D:D

          kind of what I would expect from someone who falls hook, line and sinker for activist group thought although it seems rather 1% elite thinking to tell everyone they are wrong

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          • #35
            Re: CFC Bonus Points

            Originally posted by Zeljko Kitich View Post
            he may arguably be playing at the 2170 rating level but to have that decided in only 5 games is questionable

            what do you do next time he has this performance again? put him up say 200 points? that would make him 2370 and so on

            I think that is called ratings inflation, short term performance rating tells you how you have performed over 5 games but your rating is supposed to take time to catch up to your performance ratings so that you have to prove that in the medium term you really are that rating, to get a GM rating is supposed to require a high level performance over at least the required number of games for example, so to become a GM you really do need to play a lot and prove yourself

            the FIDE system would never cause this kind of rating jump for a non-provisional player over such a small sample of games, unless of course he beat 4 GMs and drew 1

            of course European tournaments are normally 7 to 10 rounds so even in a single tournament your performance rating is vigorously tested
            If he performs like this again he definitely deserves to be around 2250, he will not gain 200 rating points (his performance was 2320), but maybe hover around the 2250-2300 which sounds about right considering the results he is getting. The point being is he will not perform like this again, and if he does he will deserve the rating gain he is getting. Until he hits around 2300, he will then barely start gaining any rating because he is playing people 200 or more points lower than him.

            I get what you mean, but the argument can go either way.

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            • #36
              Re: CFC Bonus Points

              Originally posted by Matija Elez View Post
              I think that example you gave was a very bad one. If you see who he beat (2260, 2170, 2170, 2100), tied (2200), then you would see he definitely deserves to be around the ~2170 rating that he got from this tournament.

              In this example the rating system did its job, he is not underrated nor overrated anymore.
              but in his next tournament he lost to a 1766 and an 1866

              obviously he was overrated at 2174. everyone knew it. he knew it

              this rating system is so clearly idiotic that i can demonstrate it with a picture

              everytime it hurts, it hurts just like the first (and then you cry till there's no more tears)

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              • #37
                Re: CFC Bonus Points

                Originally posted by Bindi Cheng View Post
                I think juniors were doing just fine before in the old system without all these ridiculous bonus points added on top of that. . . From my experience, juniors who are willing to work hard and are gaining 100 points/month are either insane or can only keep that up for about 2 or 3 months tops unless they started at 200 and jumped to 1200 in a year. I don't think its reasonable to assume that juniors can jump even 500 points per year on a consistent basis if only because at that rate, they will most likely break Kasparov's record in a few years.

                On a further note, I'd just like to point out that even though I have no idea how good Harmony Zhu is, jumping 400 points in one 6 round tournament is ridiculous even if she went 5/6. That means she is gaining 80 points per win. I thought the maximum was 32 points per win? When did people start gaining an extra 150% of their rating from bonus points? If she's really that good, she will eventually get to become 1400 (and judging from her last tournament, she might actually be good) but the rating system shouldn't unnecessarily reward players for having one or two fantastic tournaments and just ignoring all other performances. I thought the whole point of ratings is to show how consistent a player has performed at that level.

                For example, take a look at this chart - http://chess.ca/players?check_rating...320&key=121013
                He's been a consistent 1900 player for most of his young life but suddenly he has a break-out tournament where he scored 5.5/6 and a 2300 performance. Now, instead of just jumping 100 or 150 points, he gains a whopping 300 points. It's as if his rating is still provisional and his performance rating is counted more than his lifetime of results. That math is just ridiculous. . . I know nothing's probably going to happen out of this but I just want to let people know that something is definitely wrong with the rating system and that yes Paul, tournaments like the World Open do use a player's highest rating when categorizing which section he should play in. Life is good for the veterans of chess indeed.
                Interesting example. I think bonus points are necessary for the many coached kids under 1200 whose strength is rocketing, but that would be evident from increasingly better results which is not the situation in this case. This player would have gained (5.5-.5) x 16= 80 plus say 6 x 8= 48 for higher rated opponents for a total of 128 without bonus which would take him to a lifetime high of around 2010. Does he deserve to be called an Expert? If his next result was the same, I would say yes. I don't think his rating should be held back at 1999 as he passed 2000 without the bonus.

                Perhaps the bonus system needs to be calculated over the previous 30 games or all scores within 6 months. And to be graduated so that higher rated players have much less of a bonus.

                - Erik

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                • #38
                  Re: CFC Bonus Points

                  Originally posted by Matija Elez View Post
                  I think that example you gave was a very bad one. If you see who he beat (2260, 2170, 2170, 2100), tied (2200), then you would see he definitely deserves to be around the ~2170 rating that he got from this tournament.

                  I don't know about you, but I don't know any 1900, or even 2000/2100's who could perform this well against very good people.

                  In this example the rating system did its job, he is not underrated nor overrated anymore.
                  That's not how things work. Sometimes you just have a good tournament. That doesn't mean that suddenly you go from being a 1900 player for years to being a 2200 player. That's why you shouldn't gain 300 points from an anomaly.

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                  • #39
                    Re: CFC Bonus Points

                    As has been stated, the rating system is a measure of comparable strength, not absolute. If you want to prove the new system works/doesn't work, stop citing one person examples.

                    Pull the ratings of each individual game for the last 6 months, bracketed into 50 rating point differences (eg, games between players within 0-50 pts, players with a 51-100 pt difference, players with 101-150 pt difference, etc). In each bracket, you should have a total number of games, and predicted mathematical score. Then compare that to the actual scores. Determine standard deviation, and then you'll have it - either the scores will fall within predicted levels, or they won't.

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                    • #40
                      Re: CFC Bonus Points

                      Originally posted by Lucas Davies View Post
                      That's not how things work. Sometimes you just have a good tournament. That doesn't mean that suddenly you go from being a 1900 player for years to being a 2200 player. That's why you shouldn't gain 300 points from an anomaly.
                      You and Ben provide good examples, but all I am saying is I never met a 2000 or under who beat 3 2100+ and 1 2260 in one tournament.. It seemed like he definitely deserved over 2100 rating, but as shown later on, he did not.

                      I have always thought of ratings to be a performance of your last couple of tournament's, nothing more. I am for bonus gains only for juniors.. because I hate playing underrated juniors, and in the last several weekend tournaments I played in, I played a fair bit of them. It is better if they are overrated when I am playing them in tournaments in the future ;).

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                      • #41
                        Re: CFC Bonus Points

                        Originally posted by David Ottosen View Post
                        As has been stated, the rating system is a measure of comparable strength, not absolute. If you want to prove the new system works/doesn't work, stop citing one person examples.

                        Pull the ratings of each individual game for the last 6 months, bracketed into 50 rating point differences (eg, games between players within 0-50 pts, players with a 51-100 pt difference, players with 101-150 pt difference, etc). In each bracket, you should have a total number of games, and predicted mathematical score. Then compare that to the actual scores. Determine standard deviation, and then you'll have it - either the scores will fall within predicted levels, or they won't.
                        the rating system is supposed to be relatively stable though. if my rating goes from X to X+100 over some period, it should be because i improved, not because every active player's rating was inflated by 100 over that period. if the system is inflating rapidly (it is) it becomes impossible to track one's own progress using the rating system
                        everytime it hurts, it hurts just like the first (and then you cry till there's no more tears)

                        Comment


                        • #42
                          Re: CFC Bonus Points

                          Originally posted by Matija Elez View Post
                          You and Ben provide good examples, but all I am saying is I never met a 2000 or under who beat 3 2100+ and 1 2260 in one tournament.. It seemed like he definitely deserved over 2100 rating, but as shown later on, he did not.
                          As Clint Eastwood said in "Unforgiven", "Deserving's got nothing to do with it."
                          Don't be so quick to throw our young friend under the bus for his poor result in the tournament following his triumph. Maybe he was sick or distracted or playing too much bughouse between rounds. We'll see where he ends up over the years.

                          Chess progress is often a bumpy ride.

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                          • #43
                            Re: CFC Bonus Points

                            I just had a look at the rating data as of 30 September. The average rating of all players rated over 1200 and active in the past 12 months has not budged in the past 3 years - currently 1739.

                            The average rating of all players rated over 1200 and active in the past 36 months was rising slowly until the new bonus point sytem replaced the old bonus point system but in the past year it has been rock steady at 1700.

                            The average rating of all players active in the past 12 months, irregardless of rating, has increased from around 1180 to around 1280 since the introduction of the new rating system. The main reason for this however, has been the enforcement of the 60 minute time limit for rated games and the subsequent drop in juniors entering the system with 3-digit ratings. Anecdotaly, the average today is still lower than it was 10 years ago but that was before my time as rating auditor.

                            The average rating of all players active in the past 36 months, irregardless of rating, has increased from around 1090 to 1120. Same reason as para above.

                            The average rating of the top 100 players had been increasing steadily at a pace of about 15 points per year (2006 to 2011). Since the introduction of the new bonus point system in mid-2011, there has been no increase and the last several data points actually show a small decrease.

                            Anyone can do their own analysis using the website: http://www.victoriachess.com/cfcstat...g_type=regular
                            Paul Leblanc
                            Treasurer Chess Foundation of Canada

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                            • #44
                              Re: CFC Bonus Points

                              Originally posted by ben daswani View Post
                              the rating system is supposed to be relatively stable though. if my rating goes from X to X+100 over some period, it should be because i improved, not because every active player's rating was inflated by 100 over that period. if the system is inflating rapidly (it is) it becomes impossible to track one's own progress using the rating system
                              Who said it is supposed by to relatively stable? The only thing that should be stable is the predictive value - a player rated 100 points higher than another should score X% in over the long run. A system where points are coming in (new players) and going out (leaving players) cannot by definition be stable.

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                              • #45
                                Re: CFC Bonus Points

                                Originally posted by David Ottosen View Post
                                Who said it is supposed by to relatively stable? The only thing that should be stable is the predictive value - a player rated 100 points higher than another should score X% in over the long run. A system where points are coming in (new players) and going out (leaving players) cannot by definition be stable.
                                There are other things bases on the rating - titles. In general everyone wishes that 2400 means the same now and 10 years ago.

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