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Individual Calculations September 2017 |
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| Seabrook, Roy Total change: 2.00 | |   |
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| Waikato Open 2017 | Hamilton | NZL | 2017-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2017 | 1814 | 1.00 | 5 | -0.27 | 20 | -5.40 | |
|  Mistry, Prashant | | | 2006 | NZL | 1.00 | 1 | 0.75 | 20 | 15.00 | | | Polishchuk, Kirill | | | 2132 | NZL | 0.00 | 1 | -0.13 | 20 | -2.60 | |  Ang, Alphaeus Wei Ern | c | | 2141 | NZL | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Gibbons, Robert E | f | | 1950 | NZL | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Punsalan, Vyanla M | | wc | 1854 | NZL | 0.00 | 1 | -0.44 | 20 | -8.80 | |
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) | | | | North Shore Open A grade | Auckland | NZL | 2017-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1964 | 1814 | 2.00 | 5 | 0.37 | 20 | 7.40 | |
| | Krstev, Antonio | | | 2034 | NZL | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Zhang, Jasmine Haomo | | wf | 1880 | NZL | 1.00 | 1 | 0.59 | 20 | 11.80 | | | Mukkattu, Philip | | | 1674 | NZL | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Steadman, Michael V R | f | | 2194 | NZL | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Li, Shenyue (sherry) | | | 2038 | CHN | 0.00 | 1 | -0.22 | 20 | -4.40 | |
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) | | |
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