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Originally posted by zxcvbnmzThe max number of points you can gain in one game is 32 but you have to beat someone with 714 more rating then you.
I've been on blitz chess a long time and my score has gone down a lot so how many games do i have to win to get up to 1300 or higher ? my score is 1169 right now
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Originally posted by KnightStalker47In the USCF rating system, you have to beat somebody rated about 400 points above you to gain the maximum 32 points. Is RHP different from the USCF in this regard? Where did that 714 figure come from? (Aside from 714 being the number of career home runs fro Babe Ruth.)
The max number of points you can gain in one game is 32 but you have to beat someone with 714 more rating then you.
edit: I think that 714 was also Joe Friday's badge number in the TV show "Dragnet."
- Joined
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Originally posted by gaychessplayerI read it in a book awhile ago I guess it must have been a very old book.
In the USCF rating system, you have to beat somebody rated about 400 points above you to gain the maximum 32 points. Is RHP different from the USCF in this regard? Where did that 714 figure come from? (Aside from 714 being the number of career home runs fro Babe Ruth.)
edit: I think that 714 was also Joe Friday's badge number in the TV show "Dragnet."
Edit: I have lost to people rated 600 points higher then me and I still lose 1 point. So mabye 714 is the max difference to still gain points against weaker players.
Originally posted by cmsMasterUsing the formula for expected win probability which is 1 / ((10 ^ (oppRating - yourRating) / 400) + 1) I am finding that your rating will change by 29 points if your rating difference is 400 points.
Yeah, I'm sure the number isn't 714, 400 sounds accurate.
(of course for provisional ratings the rating change can be much larger).
As the rating difference gets larger and larger, the win probability asymptotically approaches zero, thus the rating change asymptotically approaches 32. For those not familiar with asymptotes, this means that the rating change approaches 32 as the rating difference approaches infinity.
However, if my calculations are correct, at 719 the rating change would be about 31.49 which rounds down to 31, but at 720 the rating change would be 31.5007 which rounds up to 32.
I am not sure if this site rounds off at whole numbers or stores decimal numbers. Obviously they display only whole numbers for ratings, but that does not prove they don't keep track of tenths of a point. Assuming they deal only with whole numbers, a 720 point difference would result in a full 32 point rating change but a 719 point rating difference would rsult in a 31 point rating change.