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Individual Calculations April 2019 |
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| Zwakala, Ntando Total change: 17.40 | |   |
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| 2019 Waterkloof Open (A) | Pretoria | RSA | 2019-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1823 | 2054 | 4.00 | 5 | 0.26 | 20 | 5.20 | |
|  Nkuna, Windsor | | | 1654 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Babuseng, Moitse | | | 1746 | RSA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Maepane, Matome | | | 1654 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Mwale, Joseph | c | | 2270 | MAW | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Marais, Daniel | | | 1792 | RSA | 1.00 | 1 | 0.18 | 20 | 3.60 | | | * 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) | | | | Moja Chess Club Open (A-Section) | Kimberley | RSA | 2019-03-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1999 | 2054 | 4.50 | 7 | 0.61 | 20 | 12.20 | |
| | Kgosimotswedi, Aaron Masisi | | | 1654 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Baatjies, Thsepo | | | 1776 | RSA | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Pesa, Mofoka A. | | | 1855 | RSA | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Hercules, Benjamin Vincent | | | 2194 | RSA | 0.50 | 1 | 0.19 | 20 | 3.80 | | | Mbedza, Richard | c | | 1917 | MAW | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Mwale, Joseph | c | | 2270 | MAW | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Oatlhotse, Providence | m | | 2325 | BOT | 0.00 | 1 | -0.17 | 20 | -3.40 | | | * 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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