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Individual Calculations April 2020 |
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| Mnguni, Jacob Dumisani Total change: 60.60 | |   |
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| Heidelberg Open (Prestige) | Heidelberg | RSA | 2020-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1994 | 2130 | 3.50 | 4 | 0.87 | 20 | 17.40 | |
|  Vundla, Mthandazo | | | 1755 | RSA | 1.00 | 1 | 0.09 | 20 | 1.80 | |  Masiya, Mfundo | | | 1960 | RSA | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Mwale, Joseph | f | | 2249 | MAW | 1.00 | 1 | 0.66 | 20 | 13.20 | | | Mthunzi, Brighton | | | 2011 | RSA | 0.50 | 1 | -0.16 | 20 | -3.20 | |
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) | | | | 2020 Waterkloof Open Chess Tournament (Section A) | Pretoria | RSA | 2020-02-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2015 | 2127 | 3.00 | 4 | 0.51 | 20 | 10.20 | |
| | Modiselle, Mogomotsi | | | 1727 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Masiya, Mfundo | | | 1996 | RSA | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Khumalo, Keith | c | | 2129 | RSA | 1.00 | 1 | 0.50 | 20 | 10.00 | | | Mwale, Joseph | f | | 2206 | MAW | 0.00 | 1 | -0.39 | 20 | -7.80 | | | * 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) | | | | Boardwalk Pearson Prestige Chess Tournament 2020 (Indiv Swiss) | Port Elizabeth | RSA | 2020-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2027 | 2127 | 6.00 | 7 | 1.65 | 20 | 33.00 | |
| | February, Jesse Nikki | | wm | 1868 | RSA | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Odendaal, Frederick | | | 1988 | RSA | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Hercules, Benjamin Vincent | | | 2144 | RSA | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Kaulule Siame, Kela | | | 2178 | ZAM | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Van Zyl, Marius J | | | 1789 | RSA | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Khumalo, Keith | c | | 2129 | RSA | 1.00 | 1 | 0.50 | 20 | 10.00 | | | Zwakala, Ntando | | | 2092 | RSA | 1.00 | 1 | 0.45 | 20 | 9.00 | |
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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