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Individual Calculations August 2017 |
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| Silva, David Total change: 26.20 | |   |
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| 2017 African Individual Chess Championships "Open" | Oran | ALG | 2017-07-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2284 | 2205 | 5.00 | 9 | 1.31 | 20 | 26.20 | |
|  Adly, Ahmed | g | | 2605 * | EGY | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Moulay, Mehdi | | | 2055 | ALG | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Odendaal, Frederick | | | 2038 | RSA | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Van Zyl-Rudd, Jack | f | | 2125 | RSA | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Phiri, Richmond | m | | 2267 | ZAM | 0.00 | 1 | -0.41 | 20 | -8.20 | | | Douissa, Oussama | | | 2270 | TUN | 0.50 | 1 | 0.09 | 20 | 1.80 | | | Boudriga, Med Ali | m | | 2348 | TUN | 1.00 | 1 | 0.69 | 20 | 13.80 | | | Farahat, Ali | m | | 2420 | EGY | 1.00 | 1 | 0.77 | 20 | 15.40 | | | Cawdery, Daniel | m | | 2426 | RSA | 0.00 | 1 | -0.22 | 20 | -4.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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