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Individual Calculations May 2023 |
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| Montaigne, Adrien Total change: 29.00 | |   |
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| Coulsdon Chess Standardplay Congress Easter 2023 - Open | Coulsdon | ENG | 2023-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1936 | 1790 | 3.50 | 5 | 1.89 | 20 | 37.80 | |
|  Lalic, Peter D | c | | 2145 | ENG | 1.00 | 1 | 0.89 | 20 | 17.80 | | | Hurtado Oldridge, Felipe | | | 1877 | ESP | 1.00 | 1 | 0.62 | 20 | 12.40 | |  Khovanskiy, Maxim | | | 1859 | ENG | 0.50 | 1 | 0.10 | 20 | 2.00 | | | Faulkner, Martin J | | | 1798 | ENG | 1.00 | 1 | 0.51 | 20 | 10.20 | | | Iyengar, Ilya | | | 2003 | ENG | 0.00 | 1 | -0.23 | 20 | -4.60 | |
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) | | | | Central London Chess Congress April 2023 - Open | London | ENG | 2023-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1882 | 1790 | 1.50 | 5 | -0.44 | 20 | -8.80 | |
| | Lalic, Peter D | c | | 2145 | ENG | 0.00 | 1 | -0.11 | 20 | -2.20 | | | Gunawardana, Thivan Manamperi | | | 1390 * | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Villiers, Thomas | c | | 2160 | ENG | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Rogers, Tim L | | | 1920 | ENG | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Robinson, James | | | 1795 | ENG | 0.50 | 1 | 0.01 | 20 | 0.20 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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