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Individual Calculations February 2024 |
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| Graham, David B Total change: -6.40 | |   |
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| Caplin Hastings International Chess Congress - Con Power Christmas Under 2250 | Hastings | ENG | 2023-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1960 | 2163 | 4.00 | 6 | -0.48 | 20 | -9.60 | |
|  De Coverly, Roger D | | | 1893 | ENG | 1.00 | 1 | 0.17 | 20 | 3.40 | |  Potter, John M | | | 1990 | ENG | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Arnott, Jonathan W | c | | 2102 | ENG | 0.00 | 1 | -0.58 | 20 | -11.60 | | | Verbytski, Oleg | | | 1771 | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Pert, Max | | | 1951 | ENG | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Starley, Robert | | | 2054 | ENG | 0.50 | 1 | -0.15 | 20 | -3.00 | |
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) | | | | 2023-24 4NCL Division 2 Rounds 3-4 | Warwick | ENG | 2024-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2221 | 2163 | 1.00 | 2 | 0.16 | 20 | 3.20 | |
| | Blackburn, Jonathan L B | f | | 2189 | WLS | 1.00 | 1 | 0.54 | 20 | 10.80 | | | Lewis, Andrew P | f | | 2253 | ENG | 0.00 | 1 | -0.38 | 20 | -7.60 | |
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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