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Rapid:
Individual Calculations August 2018 |
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| Griffiths, Laila Total change: 7.00 | |   |
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| Summer Rapid Showdown - U14 | Kingston, Jamaica | JAM | 2018-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1299 | 1074 | 1.00 | 3 | 0.35 | 20 | 7.00 | |
|  Stephenson, John | | | 1332 | JAM | 0.00 | 1 | -0.18 | 20 | -3.60 | |  McKoy, Arielle | | | 1253 | JAM | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Stephenson, Amy | | | 1311 | JAM | 1.00 | 1 | 0.80 | 20 | 16.00 | |
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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