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Individual Calculations April 2019 |
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| Claassen, Jean-Daniel Total change: 134.40 | |   |
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| 2019 Waterkloof Open (A) | Pretoria | RSA | 2019-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1708 | 1481 | 4.00 | 5 | 2.70 | 40 | 108.00 | |
|  Odendaal, Mikhal Marcus | | | 1188 | RSA | 1.00 | 1 | 0.15 | 40 | 6.00 | |  Marais, Coenraad Hendrik | | | 1881 * | RSA | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Du Plessis, Heinco | | | 1881 * | RSA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Louw, Gideon N. | | | 1711 | RSA | 1.00 | 1 | 0.79 | 40 | 31.60 | | | Rabiul, Bhuiyan | | | 1881 * | BAN | 1.00 | 1 | 0.92 | 40 | 36.80 | | | * 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) | | | | South African Junior Closed Chess Championships 2019 (u16 Open) | Benoni | RSA | 2019-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1504 | 1481 | 4.50 | 8 | 0.66 | 40 | 26.40 | |
| | Coetzee, Philip Paul | | | 1443 | RSA | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Eaton, Dante | c | | 1629 | RSA | 1.00 | 1 | 0.70 | 40 | 28.00 | | | Essa, Naseem Ahmed | f | | 1856 | RSA | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Louw, Carlo | | | 1367 | RSA | 0.50 | 1 | -0.16 | 40 | -6.40 | | | Cruywagen, Armand | | | 1496 | RSA | 0.00 | 1 | -0.48 | 40 | -19.20 | | | Dhevcharran, Kahill | | | 1625 | RSA | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Maharaj, Ajeet | | | 1254 | RSA | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Hlongwane, Blessing | | | 1363 | RSA | 1.00 | 1 | 0.34 | 40 | 13.60 | |
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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