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Individual Calculations February 2018 |
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| Yankana, Alliyah Total change: -9.20 | |   |
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| John Powell Memorial 2018 [Open] | Kingston, Jamaica | JAM | 2018-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1589 | 1420 | 1.00 | 4 | -0.23 | 40 | -9.20 | |
|  Lyn, Christopher | | | 1709 | JAM | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Hall, Odane | | | 1760 | JAM | 0.00 | 1 | -0.12 | 40 | -4.80 | |  Patman, Tivon | | | 1247 | JAM | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Clarke, Adani | | wc | 1638 | JAM | 0.00 | 1 | -0.22 | 40 | -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) | | |
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