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als_een_krant 1/01/2005 09:20:17 [ report this post ]	Subject: Provisional rating Message: The number of completed games you have to have played, as it is now, before you get an established rating, is 20. An arbitrary number. However, I think this number is not optimal. It should be 40. Why? If you have played 19 games and you win against someone with 100 points more and established rating, you get (100+400) / 20 = 25 rating points. With the ELO system your gain would be roughly half of this amount. Would you have completed 39 games and still have had provisional rating you would have gained (100+400) / 40 = 12.5 points. This is the same as you would gain with the ELO calculation. In fact, against a player with any established rating, within a range of 400 points of your rating and with any game result, with the provisional rating system you will gain/loose about the same amount of points as with ELO, after 39 games. This way your provisional rating will go as fluently as possible over into an established rating. Kind regards, Mike
alice02 1/01/2005 21:47:19 [ report this post ]	enter 2200 - how many games to reach that rating Message: For a beginner like me the provisional rating is really good. however when i become a (lol) grandmaestro (is grandmaestro the non sexist form of grandmaster?) I wouldn't like starting at 1200 at all. if someone with a rating of 2200 joined the site. Assuming they won every game. They had all their games with opponents 500 above them until they reached 1700 then played opponents with the highest ratings - how many games would they have to play before they reached 1700 and could start challenging opponents at their level. How many games before they had the correct rating against their name?
als_een_krant 1/02/2005 03:09:36 [ report this post ]	2200 rated players Message: For those players, they would gain more rating points against opponents when they still have a provisional rating in comparison to ELO, if they have played less than 40 games. This way their rating will better reflect their real strength. Another thing is that I stated the maximum of 400 points difference, because if the difference is bigger, provisional rating will gain you more points than ELO. About your question: If a player won 5 games on a row against 1700 players (500 + 1200) as his first games on the site, his resulting rating would be 2100 already. It shouldn't take long to reach 2200 therefore.
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