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Individual Calculations May 2015 |
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| Van Zyl-Rudd, Jack Total change: -26.80 | |   |
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| SA Junior Closed Chess Championship 2015 Under 16 Open | Pretoria | RSA | 2015-04-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1739 | 1632 | 1.50 | 6 | -0.67 | 40 | -26.80 | |
|  Marais, Franco | | | 1782 | RSA | 0.50 | 1 | 0.20 | 40 | 8.00 | | | Kolver, Chris | | | 1930 | RSA | 0.00 | 1 | -0.15 | 40 | -6.00 | |  Roos, Lucas | | | 1681 | RSA | 0.00 | 1 | -0.43 | 40 | -17.20 | | | Marais, Daniel | | | 1688 | RSA | 0.50 | 1 | 0.08 | 40 | 3.20 | | | Agulhas, Keegan | | | 1716 | RSA | 0.00 | 1 | -0.38 | 40 | -15.20 | | | Grimmbacher, Andrew | | | 1639 | RSA | 0.50 | 1 | 0.01 | 40 | 0.40 | |
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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