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Individual Calculations October 2021 |
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| Vather, Shayur Total change: -40.40 | |   |
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| 2021 Gauteng North Open (Section A) | Pretoria | RSA | 2021-08-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1405 | 1261 | 1.00 | 3 | -0.03 | 40 | -1.20 | |
|  Mabusela, Johannes Manyedi | m | | 1661 * | RSA | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Price, Rowan Daelen | | | 1346 | RSA | 0.00 | 1 | -0.38 | 40 | -15.20 | | | Aldum, Rocco | | | 1208 | RSA | 1.00 | 1 | 0.43 | 40 | 17.20 | | | * 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) | | | | 2021 Etienne Lewis (U16 Open) | Pretoria | RSA | 2021-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1394 | 1261 | 0.00 | 3 | -0.98 | 40 | -39.20 | |
| | Govender, Shevern | | | 1485 | RSA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Smit, Yoshua | | | 1372 | RSA | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Nguyen, Minh | | | 1325 | RSA | 0.00 | 1 | -0.41 | 40 | -16.40 | |
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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