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Individual Calculations June 2023 |
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| Armbruster, David Total change: -13.60 | |   |
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| Durham County Chess Congress - Open | Darlington | ENG | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1899 | 1871 | 2.00 | 5 | -0.34 | 40 | -13.60 | |
|  Swales, Andrew | | | 1570 | ENG | 1.00 | 1 | 0.15 | 40 | 6.00 | |  Arnott, Jonathan W | c | | 2080 | ENG | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Gazis, Georgios | | | 1835 | GRE | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Tart, Peter K | | | 1817 | ENG | 0.00 | 1 | -0.58 | 40 | -23.20 | | | Redmond, John P. | | | 2193 | IRL | 0.00 | 1 | -0.13 | 40 | -5.20 | |
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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