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Individual Calculations January 2018 |
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| Chumfwa, Kelvin Total change: -26.80 | |   |
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| 2017 Lusaka Province Chess Association League 1-28 | Lusaka | ZAM | 2017-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2003 | 2193 | 7.50 | 13 | -2.08 | 20 | -41.60 | |
|  Siamayuwa, Eric | | | 1916 | ZAM | 1.00 | 1 | 0.17 | 20 | 3.40 | |  Siuluta , Arnold | | | 2045 | ZAM | 0.00 | 1 | -0.70 | 20 | -14.00 | | | Kantalamba, Mushota | | | 2029 | ZAM | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Mayimbo, Clement | | | 2044 | ZAM | 0.50 | 1 | -0.20 | 20 | -4.00 | | | Chiswela, Eric | | | 2069 | ZAM | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Chansa, Jackson | | | 2128 | ZAM | 0.00 | 1 | -0.59 | 20 | -11.80 | | | Chinapu, Eric | | | 1953 | ZAM | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Kakoma, Davy | | | 1989 | ZAM | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Mulauzi, Joshua | | | 1932 | ZAM | 0.00 | 1 | -0.82 | 20 | -16.40 | | | Mwape, Dennis | | | 1971 | ZAM | 0.50 | 1 | -0.28 | 20 | -5.60 | | | Phiri, Gift | | | 1793 * | ZAM | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Mayimbo, Clement | | | 2044 | ZAM | 0.50 | 1 | -0.20 | 20 | -4.00 | | | Chansa, Jackson | | | 2128 | ZAM | 0.50 | 1 | -0.09 | 20 | -1.80 | | | * 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) | | | | CCLA Mukubulo Chess Championships - Elite Section | Ndola | ZAM | 2017-12-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2194 | 2296 | 5.50 | 8 | 0.41 | 20 | 8.20 | |
| | Ngonga, Bornface | | | 2125 | ZAM | 0.50 | 1 | -0.23 | 20 | -4.60 | | | Nyambe, Maketo | c | | 2192 | ZAM | 0.00 | 1 | -0.64 | 20 | -12.80 | | | Simulundu, Judah | | | 2101 | ZAM | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Goma, Panji | | | 2146 | ZAM | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Luanja, Geoffrey | | | 2194 | ZAM | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Mulenga, Prince Daniel | | | 2217 | ZAM | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Bwalya, Gillan | m | | 2280 | ZAM | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Phiri, Richmond | m | | 2296 | ZAM | 0.50 | 1 | 0.00 | 20 | 0.00 | |
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) | | | | Nkwazi Closed Chess Tournament | Lusaka | ZAM | 2017-12-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2150 | 2296 | 6.50 | 9 | 0.33 | 20 | 6.60 | |
| | Luanja, Geoffrey | | | 2194 | ZAM | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Katebe, Linus | | | 2061 | ZAM | 0.00 | 1 | -0.79 | 20 | -15.80 | | | Chinapu, Eric | | | 1958 | ZAM | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Bwalya, Gillan | m | | 2280 | ZAM | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Phiri, Godwin | c | | 2256 | ZAM | 1.00 | 1 | 0.44 | 20 | 8.80 | | | Daka, Justin | | | 2222 | ZAM | 0.50 | 1 | -0.10 | 20 | -2.00 | | | Kabwe, Timothy | | | 2150 | ZAM | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Kameya, Robson | | | 2132 | ZAM | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Mwenya, Oscar | c | | 2097 | ZAM | 1.00 | 1 | 0.24 | 20 | 4.80 | |
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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