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Individual Calculations March 2017 |
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| Jacobs, Cavan Total change: 18.40 | |   |
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| Piet Robbertse 2017 Fide | Pretoria | RSA | 2017-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1927 | 1669 | 2.00 | 5 | 1.06 | 20 | 21.20 | |
|  Mazibuko, Khanya | c | | 1974 | RSA | 1.00 | 1 | 0.86 | 20 | 17.20 | | | Ponelis, Albert A. | | | 1921 | RSA | 0.00 | 1 | -0.19 | 20 | -3.80 | |  Bornheim, Craig | c | | 2010 | RSA | 1.00 | 1 | 0.88 | 20 | 17.60 | | | Wilken, Justin Barend | | | 1907 | RSA | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Nkosi, Dumisa Jacob | | | 1825 | RSA | 0.00 | 1 | -0.29 | 20 | -5.80 | |
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) | | | | Heidelberg Open (Prestige Section) | Heidelberg | RSA | 2017-02-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1837 | 1669 | 1.50 | 5 | -0.14 | 20 | -2.80 | |
| | Mabusela, Johannes Manyedi | m | | 2069 * | RSA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Bezuidenhout, Roland | c | | 2069 * | RSA | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Pitso, Fusi Paulus | | | 1948 | RSA | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Marais, Nina | | wc | 1524 | RSA | 0.00 | 1 | -0.69 | 20 | -13.80 | | | De Villiers, Ockert Almaro | | | 1576 | RSA | 1.00 | 1 | 0.37 | 20 | 7.40 | | | * 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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