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Individual Calculations November 2015 |
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| Van Zyl-Rudd, Jack Total change: 22.40 | |   |
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| 4th FIDE Invitational Closed Tournament 2014 | Port Elizabeth | RSA | 2015-10-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1968 | 1710 | 1.50 | 6 | 0.30 | 40 | 12.00 | |
|  Kromhout, Ewan | | | 2042 | RSA | 0.00 | 1 | -0.12 | 40 | -4.80 | |  Jasson, Alexander Luke Joseph | | | 1835 | RSA | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Windvogel, Lance J | | | 1795 | RSA | 1.00 | 1 | 0.62 | 40 | 24.80 | | | Crismann, Alessandro Claudio | f | | 1970 | RSA | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Hercules, Benjamin Vincent | | | 2110 * | RSA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Odendaal, Frederick | | | 2057 | RSA | 0.00 | 1 | -0.11 | 40 | -4.40 | | | * 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) | | | | South African Club Chess Championship 2015 | Durban | RSA | 2015-10-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1915 | 1710 | 1.00 | 3 | 0.26 | 40 | 10.40 | |
| | Lewis, Mark Mm. | | | 1852 | RSA | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Zwakala, Ntando | | | 2034 | RSA | 0.50 | 1 | 0.37 | 40 | 14.80 | | | Naidu, Sayen | | | 1859 | RSA | 0.50 | 1 | 0.20 | 40 | 8.00 | |
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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