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Individual Calculations September 2009 |
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| Solomons, Deon M. Total change: -21.75 | |   |
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| South African Open Chess Championship | Cape Town | RSA | 2009-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2057 | 2210 | 1.50 | 4 | -1.28 | 15 | -19.20 | |
|  Pon, Dale | | | 1945 | RSA | 1.00 | 1 | 0.18 | 15 | 2.70 | |  Steenkamp, Johan J. | | | 2184 | RSA | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Simutowe, Musa | | | 2110 | ZAM | 0.00 | 1 | -0.64 | 15 | -9.60 | | | Weideman, Hendrik J. | | | 1987 | RSA | 0.00 | 1 | -0.78 | 15 | -11.70 | |
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) | | | | 2009 African Individual Chess Championship (gen) | Tripoli | LBA | 2009-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2242 | 2210 | 4.00 | 9 | -0.17 | 15 | -2.55 | |
| | Abdel Razik, Khaled | m | | 2462 | EGY | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Obiamiwe, Paul | | | 2043 | NGR | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Shabash, Abdullatief Mohamed | | | 2193 | LBA | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Rizouk, Aimen | g | | 2506 | ALG | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Van Den Heever, Donovan | c | | 2254 | RSA | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Salem, Ali Maoloud | | | 2131 | LBA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Chahrani, Ibrahim | f | | 2280 | LBA | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Nyazi, Nehad | | | 2237 | EGY | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Gator, Mosab | | | 2076 | LBA | 0.50 | 1 | -0.18 | 15 | -2.70 | |
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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