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Individual Calculations September 2012 |
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| Nene, Themba Total change: -46.20 | |   |
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| Alekhine Open 2012 | Pretoria | RSA | 2012-07-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1731 | 1986 | 2.50 | 4 | -0.74 | 30 | -22.20 | |
|  De, Bruyn Aleida | | wf | 1665 | RSA | 1.00 | 1 | 0.13 | 30 | 3.90 | |  Marais, Franco | | | 1794 | RSA | 0.50 | 1 | -0.25 | 30 | -7.50 | | | Cox, Rian | | | 1689 | RSA | 0.00 | 1 | -0.85 | 30 | -25.50 | | | Du Toit, Sune | | wf | 1775 | RSA | 1.00 | 1 | 0.23 | 30 | 6.90 | |
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) | | | | Gauteng North Closed 2012 | Pretoria | RSA | 2012-08-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2033 | 1986 | 0.50 | 3 | -0.80 | 30 | -24.00 | |
| | Nelson, Jaco | | | 2073 | RSA | 0.00 | 1 | -0.38 | 30 | -11.40 | | | Goosen, Anton | c | | 2093 | RSA | 0.50 | 1 | 0.15 | 30 | 4.50 | | | Ponelis, Albert A | | | 1933 | RSA | 0.00 | 1 | -0.57 | 30 | -17.10 | |
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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