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Individual Calculations April 2019 |
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| Levitan, Caleb Levi Total change: 26.80 | |   |
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| 2019 Waterkloof Open (A) | Pretoria | RSA | 2019-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1471 | 1299 | 2.50 | 4 | 1.31 | 40 | 52.40 | |
|  Smit, Devon | | | 1530 | RSA | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Villoen, Sharise | | | 1162 | RSA | 1.00 | 1 | 0.32 | 40 | 12.80 | |  Dykema, Dirkho | | | 1604 | RSA | 1.00 | 1 | 0.86 | 40 | 34.40 | | | Lesuthu, Kali M. | | | 1589 | RSA | 0.50 | 1 | 0.34 | 40 | 13.60 | |
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) | | | | South African Junior Closed Chess Championships 2019 (u10 Open) | Benoni | RSA | 2019-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1134 | 1299 | 1.50 | 3 | -0.64 | 40 | -25.60 | |
| | Peter, Noah | c | | 1179 | RSA | 1.00 | 1 | 0.34 | 40 | 13.60 | | | Levitan, Judah Nathan | | | 1065 | RSA | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Boheim, Eugene | | | 1157 | RSA | 0.00 | 1 | -0.69 | 40 | -27.60 | |
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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