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Individual Calculations January 2019 |
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| Waters, Anre Total change: -9.20 | |   |
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| 2018 South African Junion Chess Championships (u20A) | Boksburg | RSA | 2018-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1906 | 1662 | 0.00 | 3 | -0.64 | 20 | -12.80 | |
|  Lynch, Justin | | | 1880 | RSA | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Van Der Lingen, Cornelis Petrus | | | 1776 | RSA | 0.00 | 1 | -0.34 | 20 | -6.80 | |  Kolver, Chris | c | | 2062 * | RSA | 0.00 | 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) | | | | 2018 Inter Region Chess Championships | Boksburg | RSA | 2018-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1598 | 1662 | 3.00 | 5 | 0.18 | 20 | 3.60 | |
| | Mafanya, Kulasande | | | 1829 | RSA | 1.00 | 1 | 0.72 | 20 | 14.40 | | | Moodley, Yudhisthira | | | 1567 | RSA | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Huisamen, Botha Brandt | | | 1262 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Tlale, Tshepang | | wm | 1828 | RSA | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Cruywagen, Armand | | | 1504 | RSA | 0.50 | 1 | -0.21 | 20 | -4.20 | | | * 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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