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Individual Calculations May 2023 |
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| Phan, Stefanus Kf Total change: -12.60 | |   |
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| London Chess League Weekend Congress (31 March) - Open | London W6 | ENG | 2023-03-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1864 | 2004 | 1.00 | 2 | -0.26 | 20 | -5.20 | |
|  Ward, Cian | | | 1604 * | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Healey, Michael W | | | 2124 | ENG | 0.00 | 1 | -0.34 | 20 | -6.80 | | | * 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) | | | | Central London Chess Congress April 2023 - Open | London | ENG | 2023-04-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1893 | 1993 | 2.00 | 4 | -0.37 | 20 | -7.40 | |
| | Hung, Jake | | | 1640 | ENG | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Tawab, Ramin | | | 1628 | ENG | 0.50 | 1 | -0.40 | 20 | -8.00 | | | Lalic, Peter D | c | | 2145 | ENG | 0.50 | 1 | 0.20 | 20 | 4.00 | | | Villiers, Thomas | c | | 2160 | ENG | 0.00 | 1 | -0.28 | 20 | -5.60 | |
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) | | |
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