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Individual Calculations April 2020 |
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| Nelson, Jaco Total change: 7.40 | |   |
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| 2020 Waterkloof Open Chess Tournament (Section A) | Pretoria | RSA | 2020-02-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1860 | 1784 | 3.00 | 5 | 0.93 | 20 | 18.60 | |
|  Badenhorst, Chloe | | | 1384 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Oatlhotse, Providence | m | | 2184 * | BOT | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Rogge, Conrad | | | 1609 | RSA | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Masiya, Mfundo | | | 1996 | RSA | 1.00 | 1 | 0.77 | 20 | 15.40 | | | Khumalo, Keith | c | | 2129 | RSA | 0.00 | 1 | -0.11 | 20 | -2.20 | | | * 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) | | | | Boardwalk Pearson Prestige Chess Tournament 2020 (Indiv Swiss) | Port Elizabeth | RSA | 2020-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1660 | 1784 | 4.00 | 7 | -0.56 | 20 | -11.20 | |
| | To, Himson | | | 1702 | RSA | 0.50 | 1 | -0.11 | 20 | -2.20 | | | Vermaak, Ashley Christopher | | | 1725 | RSA | 0.50 | 1 | -0.08 | 20 | -1.60 | | | Stambull, Rf | | | 1670 | RSA | 0.00 | 1 | -0.66 | 20 | -13.20 | | | Mkoko, Siphamandla | | | 1701 | RSA | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Felix, Raphael | | | 1384 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Van Zyl, Charlize | | wm | 1697 | RSA | 1.00 | 1 | 0.38 | 20 | 7.60 | | | Nasilowski, Rinus | | | 1743 | RSA | 1.00 | 1 | 0.44 | 20 | 8.80 | | | * 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) | | |
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