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Individual Calculations June 2023 |
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| Kaoma, Michael Total change: -7.80 | |   |
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| AFRICAN INDIVIDUAL CHESS CHAMPIONSHIP OPEN 2023 | Giza | EGY | 2023-05-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2144 | 2187 | 4.50 | 9 | -0.43 | 20 | -8.60 | |
|  Hamdy, Abdallah | | | 1787 * | EGY | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Wageih, Kareim | m | | 2375 | EGY | 0.00 | 1 | -0.26 | 20 | -5.20 | |  Salah, Sayed | | | 2027 | EGY | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Sadek, Sameh | f | | 2255 | EGY | 0.00 | 1 | -0.41 | 20 | -8.20 | | | Zaibi, Amir | g | | 2393 | TUN | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Ndahangwapo, Heskiel | | | 1952 | NAM | 0.00 | 1 | -0.79 | 20 | -15.80 | | | George Samir, David | f | | 2055 | EGY | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Rahman, Yehya | m | | 2064 | EGY | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Abdel Razik, Khaled | m | | 2384 | EGY | 0.00 | 1 | -0.25 | 20 | -5.00 | | | * 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) | | | | 2023 Minerva International Open Chess Tournament Open Section | Harare | ZIM | 2023-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1877 | 2187 | 7.50 | 9 | 0.04 | 20 | 0.80 | |
| | Madzinga, Gibson | | | 1787 * | ZIM | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ngwerume, Michael | | | 1764 | ZIM | 0.50 | 1 | -0.43 | 20 | -8.60 | | | Rabvu, Emmanuel | | | 1690 | ZIM | 1.00 | 1 | 0.04 | 20 | 0.80 | | | Tavagwisa, Lawrence | | | 1889 | ZIM | 0.50 | 1 | -0.35 | 20 | -7.00 | | | Olositswe, Elias | | | 1852 | BOT | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Chinhanga, Tinashe | | | 1901 | ZIM | 0.50 | 1 | -0.34 | 20 | -6.80 | | | Chivinda, Dee | | | 1748 | ZIM | 1.00 | 1 | 0.06 | 20 | 1.20 | | | Mushota, Kandalamba | | | 2036 | ZAM | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Mhango, Banele | f | | 2228 | 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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