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Individual Calculations August 2015 |
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| Basson, Petrus Total change: -20.80 | |   |
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| Tsogo Sun Millionaire Satellite Chess Festival | Johannesburg | RSA | 2015-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1700 | 1700 | 1.50 | 4 | -0.52 | 40 | -20.80 | |
|  Zwakala, Ntando | | | 2025 | RSA | 0.00 | 1 | -0.13 | 40 | -5.20 | |  Lekalakalae, Malusi | | | 1857 | RSA | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Dykema, Dirkho | | | 1438 | RSA | 0.50 | 1 | -0.32 | 40 | -12.80 | | | Moseli, Phera | | | 1478 | LES | 1.00 | 1 | 0.22 | 40 | 8.80 | |
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) | | |
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