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Individual Calculations September 2017 |
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| Van Niekerk, Natasha Isabel Total change: 22.00 | |   |
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| African Schools Individual Chess Championships 2017 U13 Girls | Harare | ZIM | 2017-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1303 | 1149 | 2.50 | 6 | 0.55 | 40 | 22.00 | |
|  Muthoni, Vivian | | | 1529 | KEN | 1.00 | 1 | 0.91 | 40 | 36.40 | |  Mawire, Rumbidzai | | | 1286 | ZIM | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Chiwara, Makanaka | | | 1050 | ZIM | 0.00 | 1 | -0.64 | 40 | -25.60 | | | Parikh, Nikita Ameetkumar | | | 1131 | KEN | 0.50 | 1 | -0.03 | 40 | -1.20 | | | Mwale, Naomi | | | 1359 | ZAM | 1.00 | 1 | 0.77 | 40 | 30.80 | | | Marape, Naledi | | wc | 1463 | BOT | 0.00 | 1 | -0.14 | 40 | -5.60 | |
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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