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Individual Calculations October 2017 |
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| Marais, Dawid Jacobus Total change: 21.60 | |   |
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| 2017 Etienne Lewis Tshwane Chess Trails (u16 Boys) | Pretoria | RSA | 2017-08-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1467 | 1351 | 2.00 | 4 | 0.54 | 40 | 21.60 | |
|  Nhamuave, Eleazar | | | 1695 | RSA | 1.00 | 1 | 0.88 | 40 | 35.20 | |  Vermaak, Jacobus | | | 1411 | RSA | 0.00 | 1 | -0.42 | 40 | -16.80 | | | Claassen, Jean-Daniel | | | 1390 | RSA | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Cruywagen, Armand | | | 1371 | RSA | 0.50 | 1 | 0.03 | 40 | 1.20 | |
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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