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Individual Calculations February 2023 |
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| Pert, Nina Total change: 105.20 | |   |
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| London Christmas Chess Congress - Open | London | ENG | 2022-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1999 | 1846 | 4.00 | 6 | 2.12 | 40 | 84.80 | |
|  Williamson, Roger G | | | 2205 | ENG | 0.00 | 1 | -0.10 | 40 | -4.00 | |  Morris, Brian | | | 1443 | ENG | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Sagyaman, Francis William | | | 2033 | PHI | 1.00 | 1 | 0.74 | 40 | 29.60 | | | Rogers, Tim L | | | 1942 | ENG | 1.00 | 1 | 0.63 | 40 | 25.20 | | | Lalic, Peter D | c | | 2204 | ENG | 0.50 | 1 | 0.40 | 40 | 16.00 | | | Russell, Christopher | | | 2168 | ENG | 0.50 | 1 | 0.37 | 40 | 14.80 | |
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) | | | | 2022/23 4NCL Division 2 Rounds 3-4 | Daventry | ENG | 2023-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2102 | 1904 | 1.00 | 2 | 0.51 | 40 | 20.40 | |
| | Henderson, David | | | 2113 | ENG | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Milson, Samuel A | | | 2090 | ENG | 1.00 | 1 | 0.74 | 40 | 29.60 | |
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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