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Individual Calculations April 2022 |
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| Pratley, Ian Total change: -28.40 | |   |
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| Coulsdon Chess Dicky White S7 MAR 2022 | London | ENG | 2022-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1347 | 1544 | 2.00 | 4 | -0.94 | 20 | -18.80 | |
|  Harvey, Hugh | | | 1144 * | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Marsden, Rupert | | | 1375 | ENG | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Whelan, Joseph | | | 1422 | ENG | 0.50 | 1 | -0.17 | 20 | -3.40 | | | Miles, Barry S | | | 1447 | ENG | 0.00 | 1 | -0.63 | 20 | -12.60 | | | * 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) | | | | Coulsdon Chess Daytime Chess - Spring 2022 S3 Mar 2022 | London | ENG | 2022-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1255 | 1537 | 2.00 | 3 | -0.48 | 20 | -9.60 | |
| | Khan, A Qaiyum | | | 1333 | ENG | 1.00 | 1 | 0.24 | 20 | 4.80 | |  Gold, Harry | | | 1294 | ENG | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Ibanez, Bittor | | | 1137 * | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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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