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Individual Calculations August 2015 |
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| Bwalya, Gillan Total change: -48.80 | |   |
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| Kafue Open Chess Championship 2015 | Kafue | ZAM | 2015-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2186 | 2353 | 6.00 | 7 | 1.03 | 20 | 20.60 | |
|  Gondwe, Hlanganiso | | | 2046 | ZAM | 1.00 | 1 | 0.14 | 20 | 2.80 | |  Zulu, Thomas | | | 2083 | ZAM | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Munenga, Douglas | f | | 2138 | ZAM | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Phiri, Richmond | m | | 2305 | ZAM | 1.00 | 1 | 0.43 | 20 | 8.60 | | | Chumfwa, Kelvin | m | | 2268 | ZAM | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Phiri, Godwin | | | 2148 | ZAM | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Chumfwa, Stanley | m | | 2311 | ZAM | 1.00 | 1 | 0.44 | 20 | 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) | | | | South African Open Chess Championships 2015 | Cape Town | RSA | 2015-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 2337 | 6.00 | 10 | -2.52 | 20 | -50.40 | |
| | Darling, Paul D. | f | | 1937 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | James, Michael | | | 2008 | RSA | 0.50 | 1 | -0.38 | 20 | -7.60 | | | Oberholzer, Francois | f | | 1937 * | RSA | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Blaauw, Gavin M. | | | 1937 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Mthunzi, Clive | | | 1937 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Barrish, Daniel | f | | 2150 | RSA | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Mwale, Joseph | | | 2094 | MAW | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Wium, Daniel | | | 1937 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Bhawoodien, Mohamed Ozayr | f | | 2031 | RSA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | De Villiers, Charles | f | | 2237 | RSA | 0.00 | 1 | -0.64 | 20 | -12.80 | | | * 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) | | | | Tsogo Sun Millionaire Satellite Chess Festival | Johannesburg | RSA | 2015-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2040 | 2337 | 6.50 | 9 | -0.95 | 20 | -19.00 | |
| | Hoek, Cornelis | | | 1948 | RSA | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Zwakala, Ntando | | | 2025 | RSA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Richter, Jan-Michael | | | 1937 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kaulule Siame, Kela | | | 2144 | ZAM | 0.00 | 1 | -0.75 | 20 | -15.00 | | | Mosenya, Ndawana | | | 1972 | BOT | 0.50 | 1 | -0.40 | 20 | -8.00 | | | Ristovich, Dmitar S. | | | 1967 | RSA | 0.50 | 1 | -0.40 | 20 | -8.00 | | | Peretz, Leon | | | 1937 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Longano, Michael Nicholas | | | 2046 | RSA | 0.50 | 1 | -0.35 | 20 | -7.00 | | | Solomon, Kenny | g | | 2382 | RSA | 1.00 | 1 | 0.56 | 20 | 11.20 | | | * 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) | | |
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