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Individual Calculations August 2018 |
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| Wilken, Justin Barend Total change: -30.80 | |   |
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| 2018 South African Open Chess Championships (A-Section) | Bloemfontein | RSA | 2018-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1699 | 1889 | 5.00 | 9 | -1.54 | 20 | -30.80 | |
|  Van Der Merwe, Alexander | | | 1489 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Grover, Sahaj | g | | 2289 * | IND | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Vermeulen, George Barrett | | | 1662 | RSA | 0.50 | 1 | -0.29 | 20 | -5.80 | |  Mahlangu, Sipho | | | 1679 | RSA | 0.00 | 1 | -0.77 | 20 | -15.40 | | | Magagula, Raymond | | | 1565 | RSA | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Chueu, Calvin | | | 1602 | RSA | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Sikwati, Lizo | | | 1681 | RSA | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Pesa, Mofoka A. | | | 1831 | RSA | 0.00 | 1 | -0.58 | 20 | -11.60 | | | Cronwright, Shaun | | | 1489 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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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