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Individual Calculations September 2022 |
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| Mason, Donald J Total change: -23.20 | |   |
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| Chessable British Chess Championships 2022: Over 50 | Torquay | ENG | 2022-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1958 | 2104 | 3.00 | 6 | -1.16 | 20 | -23.20 | |
|  Mueller, Jens | | | 1879 | GER | 1.00 | 1 | 0.22 | 20 | 4.40 | |  Baer, Bruce L | | | 1997 | ENG | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Kirby, Peter J. | c | | 2000 | GCI | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Brusey, Alan W | | | 1994 | ENG | 0.00 | 1 | -0.65 | 20 | -13.00 | | | Littlejohns, David P | | | 1943 | ENG | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Homer, Stephen J | | | 1932 | ENG | 0.00 | 1 | -0.73 | 20 | -14.60 | |
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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