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Individual Calculations February 2018 |
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| Christie, Michael Total change: 24.20 | |   |
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| John Powell Memorial 2018 [Open] | Kingston, Jamaica | JAM | 2018-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1770 | 1846 | 3.00 | 3 | 1.21 | 20 | 24.20 | |
|  Lobban, Brandon | | | 1627 | JAM | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Smith, Annesha | | wc | 1667 | JAM | 1.00 | 1 | 0.27 | 20 | 5.40 | |  Byfield, Geoffrey | | | 2016 | JAM | 1.00 | 1 | 0.72 | 20 | 14.40 | |
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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