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Individual Calculations September 2012 |
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| Zwakala, Ntando Total change: 12.60 | |   |
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| South African Open Chess Championships 2012 | Cape Town | RSA | 2012-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1842 | 1964 | 4.00 | 5 | 0.75 | 30 | 22.50 | |
|  Essop, Hishaam | | | 1614 | RSA | 1.00 | 1 | 0.11 | 30 | 3.30 | |  Pon, Matt | | | 1815 | RSA | 1.00 | 1 | 0.30 | 30 | 9.00 | | | Mathe, Lehlogonolo | | | 2116 | RSA | 0.00 | 1 | -0.30 | 30 | -9.00 | | | Crismann, Alessandro | f | | 1798 | RSA | 1.00 | 1 | 0.28 | 30 | 8.40 | | | Chettiar, Evasan | | | 1865 | RSA | 1.00 | 1 | 0.36 | 30 | 10.80 | |
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) | | | | World Junior Under 20 Chess Championships 2012 - Open | Athens | GRE | 2012-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2163 | 2056 | 4.50 | 13 | -0.33 | 30 | -9.90 | |
| | Soors, Stef | f | | 2364 | BEL | 0.50 | 1 | 0.36 | 30 | 10.80 | | | Dimitrov, Radoslav | m | | 2424 | BUL | 0.00 | 1 | -0.10 | 30 | -3.00 | | | Jefic, Srdjan | | | 2165 | BIH | 1.00 | 1 | 0.65 | 30 | 19.50 | | | Baghdasaryan, Vahe | m | | 2368 | ARM | 0.00 | 1 | -0.14 | 30 | -4.20 | | | Sodikov, Ilyas | | | 2234 | KAZ | 1.00 | 1 | 0.73 | 30 | 21.90 | | | Ivekovic, Zvonimir | | | 2320 | CRO | 0.00 | 1 | -0.18 | 30 | -5.40 | | | Arvola, Benjamin | | | 2300 | NOR | 0.00 | 1 | -0.20 | 30 | -6.00 | | | Arat, Ufuk Sezen | | | 2124 | TUR | 0.00 | 1 | -0.41 | 30 | -12.30 | | | Gantar, Jan | | | 2218 | SLO | 0.00 | 1 | -0.29 | 30 | -8.70 | | | Alexiadis, Hristos | | | 1769 | GRE | 0.00 | 1 | -0.84 | 30 | -25.20 | | | Kalofonos, Panayotis | | | 1806 | GRE | 1.00 | 1 | 0.19 | 30 | 5.70 | | | Cajahuanca Ramirez, Olindo | | | 1856 | PER | 1.00 | 1 | 0.24 | 30 | 7.20 | | | Edwards, Jonathan | | | 2170 | SCO | 0.00 | 1 | -0.34 | 30 | -10.20 | |
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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