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Individual Calculations October 2021 |
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| Nguyen, Minh Total change: 50.40 | |   |
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| 2021 Gauteng North Open (Section A) | Pretoria | RSA | 2021-08-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1480 | 1325 | 2.50 | 5 | 0.88 | 40 | 35.20 | |
|  Mhango, Banele | f | | 1725 * | RSA | 0.50 | 1 | 0.42 | 40 | 16.80 | |  Badenhorst, Chloe | | | 1439 | RSA | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Vorster, Stephanus | | | 1620 | RSA | 0.50 | 1 | 0.35 | 40 | 14.00 | | | Felix, Raphael | | | 1342 | RSA | 0.50 | 1 | 0.02 | 40 | 0.80 | | | Shuping, Omphile | | | 1272 | RSA | 0.50 | 1 | -0.07 | 40 | -2.80 | | | * 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 | 1325 | 2.50 | 5 | 0.38 | 40 | 15.20 | |
| | Delport, Ben | | | 1185 | RSA | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Simpson, Michael | | | 1666 | RSA | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Govender, Shevern | | | 1485 | RSA | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Vather, Shayur | c | | 1261 | RSA | 1.00 | 1 | 0.41 | 40 | 16.40 | | | Smit, Yoshua | | | 1372 | RSA | 0.50 | 1 | 0.07 | 40 | 2.80 | |
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) | | |
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