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Individual Calculations October 2019 |
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| Van Niekerk, Robyn Julian Total change: 50.60 | |   |
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| 2019 Chess Western Province League (Premier) | Cape Town | RSA | 2019-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1671 | 1606 | 3.00 | 4 | 1.33 | 20 | 26.60 | |
|  Mentoor, Theodor | | | 1540 | RSA | 1.00 | 1 | 0.41 | 20 | 8.20 | |  Ohlson, Cecil | | | 1628 | RSA | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Jacobs, Wesley | | | 1829 | RSA | 0.50 | 1 | 0.28 | 20 | 5.60 | | | Matsaung, Thapelo Isack | | | 1686 | RSA | 0.50 | 1 | 0.11 | 20 | 2.20 | |
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) | | | | 2019 Western Cape Closed Chess Championships (Elite) | Stellenbosch | RSA | 2019-09-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1805 | 1606 | 2.50 | 5 | 1.20 | 20 | 24.00 | |
| | De Jager, Andreas | c | | 1656 | RSA | 1.00 | 1 | 0.57 | 20 | 11.40 | | | Lewis, Mark Mm. | | | 1957 | RSA | 0.50 | 1 | 0.39 | 20 | 7.80 | | | Nevin, Tyler | | | 1708 | RSA | 0.00 | 1 | -0.36 | 20 | -7.20 | | | Selkirk, Rebecca | | wc | 1803 | RSA | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Lawrence, Gordon | | | 1899 | RSA | 1.00 | 1 | 0.85 | 20 | 17.00 | |
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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