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Individual Calculations August 2023 |
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| Potter, John M Total change: -23.60 | |   |
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| 6th Crewe Chess Congress - FIDE Open | Crewe | ENG | 2023-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1944 | 1986 | 1.50 | 4 | -0.74 | 20 | -14.80 | |
|  Garnett, John S | | | 1831 | ENG | 1.00 | 1 | 0.29 | 20 | 5.80 | |  Blackburn, Jonathan L B | f | | 2190 | WLS | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Ackley, Peter J E | | | 1920 | ENG | 0.50 | 1 | -0.09 | 20 | -1.80 | | | McCarthy, Damian | | | 1836 | ENG | 0.00 | 1 | -0.70 | 20 | -14.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Kent FIDE Congress 2023 - U2350 | Tunbridge Wells | ENG | 2023-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1804 | 1986 | 2.50 | 4 | -0.44 | 20 | -8.80 | |
| | Abhyuday, Santhosh | | | 1798 | IND | 0.00 | 1 | -0.74 | 20 | -14.80 | | | Obi, Okwose Marc | | | 1749 | ENG | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Fryer, David W | | | 1880 | ENG | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Couet, Justin | | | 1787 | FRA | 1.00 | 1 | 0.24 | 20 | 4.80 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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