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Individual Calculations April 2018 |
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| Mwale, Joseph Total change: -28.00 | |   |
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| 2018 Waterkloof Open (Prestige) | Pretoria | RSA | 2018-03-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1927 | 2240 | 3.50 | 6 | -1.52 | 20 | -30.40 | |
|  Mazibuko, Khanya | c | | 1911 | RSA | 0.00 | 1 | -0.88 | 20 | -17.60 | |  Marais, Daniel | | | 1880 | RSA | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Maredi, Alex | | | 1840 * | RSA | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Engelbrecht, Hanri | | wf | 1840 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Schoeman, Ewald | c | | 1840 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Mabusela, Johannes Manyedi | m | | 2253 | RSA | 0.00 | 1 | -0.48 | 20 | -9.60 | | | * 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) | | | | Umhlanga Invitational 2018 | Durban | RSA | 2018-03-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2003 | 2240 | 6.50 | 9 | -0.51 | 20 | -10.20 | |
| | Subke, Jason James | | | 1886 | RSA | 0.50 | 1 | -0.39 | 20 | -7.80 | | | Mosetlhe, Kgaugelo | | | 2229 | RSA | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Mpya, Tshediso M | | | 1943 | RSA | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Masango, Spencer | | | 2081 | ZIM | 0.00 | 1 | -0.71 | 20 | -14.20 | | | Essa, Naseem Ahmed | f | | 1910 | RSA | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Chetty, Cailin | f | | 1840 * | RSA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Zwakala, Ntando | | | 2053 | RSA | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Mthunzi, Brighton | | | 2044 | RSA | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Govindasamy, Nashlen | c | | 2044 | RSA | 1.00 | 1 | 0.25 | 20 | 5.00 | | | * 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 High School Chess Tournament 2018 (Prestige) | Port Elizabeth | RSA | 2018-03-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2296 | 2240 | 4.50 | 9 | 0.63 | 20 | 12.60 | |
| | Klaasen, Calvin John | f | | 2320 | RSA | 0.50 | 1 | 0.11 | 20 | 2.20 | | | Luanja, Geoffrey | | | 2300 | ZAM | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Paiva, Donaldo | c | | 2196 | MOZ | 0.50 | 1 | -0.06 | 20 | -1.20 | | | Makoto, Rodwell | m | | 2349 | ZIM | 1.00 | 1 | 0.65 | 20 | 13.00 | | | Van Zyl-Rudd, Jack | f | | 2133 | RSA | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Oatlhotse, Providence | m | | 2173 | BOT | 1.00 | 1 | 0.41 | 20 | 8.20 | | | Silva, David | m | | 2279 | ANG | 0.50 | 1 | 0.05 | 20 | 1.00 | | | Cawdery, Daniel | m | | 2428 | RSA | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Grover, Sahaj | g | | 2484 | IND | 0.00 | 1 | -0.20 | 20 | -4.00 | |
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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