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Individual Calculations September 2011 |
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| Njobvu, Ignatius Total change: -18.75 | |   |
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| Commonwealth and South African Open 2011 | Johannesburg | RSA | 2011-06-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2063 | 2228 | 1.50 | 4 | -1.25 | 15 | -18.75 | |
|  Peretz, Leon | | | 1897 | RSA | 0.50 | 1 | -0.38 | 15 | -5.70 | | | Laxman, R R | g | | 2446 | IND | 0.00 | 1 | -0.22 | 15 | -3.30 | |  Chettiar, Evasan | | | 1882 | RSA | 0.00 | 1 | -0.89 | 15 | -13.35 | | | Abrantes, Persson | | | 2026 | MOZ | 1.00 | 1 | 0.24 | 15 | 3.60 | |
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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