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Individual Calculations October 2018 |
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| Goncalves Dias, Amika Total change: 2.80 | |   |
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| 2018 Tshwane Chess Etienne Lewis Trials (U16 Girls) | Pretoria | RSA | 2018-08-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1144 | 1131 | 2.00 | 4 | 0.07 | 40 | 2.80 | |
|  Bouwer, Dane | | | 1076 | RSA | 1.00 | 1 | 0.42 | 40 | 16.80 | | | Botha, Le-Ri | | | 1129 | RSA | 0.00 | 1 | -0.50 | 40 | -20.00 | |  Booysen, Tineke | | | 1217 | RSA | 0.00 | 1 | -0.38 | 40 | -15.20 | | | Bester, Carla | | | 1154 | RSA | 1.00 | 1 | 0.53 | 40 | 21.20 | |
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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