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Individual Calculations October 2008 |
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| Jurgensen, Graham I. Total change: -16.75 | |   |
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| CENTURION OPEN ELITE SECTION 2008 | Pretoria | RSA | 2008-05-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1895 | 2106 | 1.00 | 1 | 0.23 | 25 | 5.75 | |
|  Solomons, Anzel | | wm | 1895 | RSA | 1.00 | 1 | 0.23 | 25 | 5.75 | |
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) | | | | South African Open Chess Championship 2008 | Centurion | RSA | 2008-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2123 | 2106 | 1.00 | 4 | -0.90 | 25 | -22.50 | |
|  De Waal, Ingrid | | | 1861 | RSA | 1.00 | 1 | 0.20 | 25 | 5.00 | | | Rendle, Thomas | m | | 2363 | ENG | 0.00 | 1 | -0.18 | 25 | -4.50 | | | Masango, Spencer | | | 2134 | ZIM | 0.00 | 1 | -0.46 | 25 | -11.50 | | | Niemandt, Andries D. | | | 2135 | RSA | 0.00 | 1 | -0.46 | 25 | -11.50 | |
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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