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Individual Calculations September 2023 |
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| Kirby, Peter J. Total change: -8.80 | |   |
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| 2023 British Championship: Over 50 Championship | Leicester | ENG | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1977 | 1985 | 3.00 | 7 | -0.44 | 20 | -8.80 | |
|  Graham, David B | | | 2151 | ENG | 0.00 | 1 | -0.28 | 20 | -5.60 | |  Strugar, Ioan-Euzeb | | | 1585 * | ROU | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Smith, Peter R | | | 2063 | SCO | 0.50 | 1 | 0.11 | 20 | 2.20 | | | Walker, Martin G | f | | 2079 | ENG | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Molyneux, John | | | 2230 | ENG | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Kalerwa, Edwin M | | | 1694 | ENG | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Thompson, Ian D | f | | 2035 | ENG | 0.50 | 1 | 0.07 | 20 | 1.40 | | | * 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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