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Individual Calculations January 2019 |
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| Claassen, Jean-Daniel Total change: -67.20 | |   |
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| 2018 South African Junion Chess Championships (u16A) | Boksburg | RSA | 2018-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1552 | 1548 | 0.50 | 3 | -0.98 | 40 | -39.20 | |
|  Daniel, Angelo | | | 1516 | RSA | 0.00 | 1 | -0.54 | 40 | -21.60 | |  De Jager, Andreas | c | | 1623 | RSA | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Dinham, James | | | 1517 | RSA | 0.50 | 1 | -0.04 | 40 | -1.60 | |
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) | | | | 2018 Inter Region Chess Championships | Boksburg | RSA | 2018-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1706 | 1548 | 1.50 | 7 | -0.70 | 40 | -28.00 | |
| | De Abreu, Roberto N | f | | 1948 * | RSA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Makhubela, Linda | | | 1753 | RSA | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Chimbwanda, Panashe | | | 1773 | ZIM | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Fourie, Brandon | | | 1460 | RSA | 0.50 | 1 | -0.12 | 40 | -4.80 | | | Elliott, Luka | | | 1747 | RSA | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Tissot Van Patot, Anton | | | 1469 | RSA | 1.00 | 1 | 0.39 | 40 | 15.60 | | | Tshetlo, Tshepo | | | 1794 | RSA | 0.00 | 1 | -0.19 | 40 | -7.60 | | | * 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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