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Individual Calculations September 2023 |
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| Mason, Donald J Total change: -39.00 | |   |
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| 2023 British Championship: Over 50 Championship | Leicester | ENG | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1827 | 2041 | 1.00 | 4 | -1.95 | 20 | -39.00 | |
|  Cole, Graham | | | 1641 * | ENG | 0.00 | 1 | -0.92 | 20 | -18.40 | |  Kalerwa, Edwin M | | | 1694 | ENG | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Handley, Michael R | | | 1965 | ENG | 0.00 | 1 | -0.60 | 20 | -12.00 | | | Grillage, Andrew | | | 2009 | ENG | 0.00 | 1 | -0.54 | 20 | -10.80 | | | * 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) | | |
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