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Individual Calculations July 2018 |
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| Gray, Mark S Total change: -9.80 | |   |
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| CCF CUP 2018 ELITE | London | ENG | 2018-06-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 2143 | 2.50 | 4 | -0.10 | 20 | -2.00 | |
|  Lock, Gavin R | | | 2126 | ENG | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Snape, Ian L | | | 2163 | ENG | 1.00 | 1 | 0.53 | 20 | 10.60 | |  Jaufarally, Nadia | | | 1916 | ENG | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Anilkumar, Anantha P (jnr) | | | 1878 | ENG | 0.00 | 1 | -0.82 | 20 | -16.40 | |
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) | | | | 62nd Hampstead Weekend Congress Under 2200 | London | ENG | 2018-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1894 | 2143 | 3.50 | 5 | -0.39 | 20 | -7.80 | |
| | Mazur, Maciej | | | 1842 | POL | 0.50 | 1 | -0.35 | 20 | -7.00 | | | Covey, Jason | | | 1743 * | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Surender, Anil | | | 2027 | SWE | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Atako, Chino C | | | 2115 | ENG | 0.00 | 1 | -0.54 | 20 | -10.80 | | | Ozturan, Cem | | | 1743 * | TUR | 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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