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Individual Calculations August 2015 |
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| Waterfield, John W Total change: 16.60 | |   |
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| 12th South Wales International Open | Cardiff | WLS | 2015-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1934 | 1913 | 5.50 | 10 | 0.83 | 20 | 16.60 | |
|  Govindaraj, Neya | | | 1513 * | WLS | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Marusenko, Petr | m | | 2192 | UKR | 0.50 | 1 | 0.34 | 20 | 6.80 | | | Braun, Walter | f | | 2222 | AUT | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Ralphs, Nigel | | | 1965 | WLS | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Jukes, Sam | | | 1647 | WLS | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Williams, Winston | c | | 2166 | SIN | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Robertson, Jim | | | 1673 | SCO | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Jones, Jeremy | | | 1598 | WLS | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Kett, Tim | | | 2219 | WLS | 0.50 | 1 | 0.36 | 20 | 7.20 | | | Rysbayeva, Aigerim | | wf | 2142 | KAZ | 0.00 | 1 | -0.21 | 20 | -4.20 | | | * 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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