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Individual Calculations January 2019 |
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| Hayssan, Abdul Arnaldo Afu Total change: 15.20 | |   |
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| 2018 African Schools Individual Chess Championships (U11 and U13 Boys) | Waterberg | RSA | 2018-12-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1453 | 1198 | 1.00 | 3 | 0.38 | 40 | 15.20 | |
|  Baltazar, Carlos | | | 1521 | ANG | 1.00 | 1 | 0.87 | 40 | 34.80 | |  Lefyedi, Thatego | | | 1281 | RSA | 0.00 | 1 | -0.39 | 40 | -15.60 | | | Oosthuizen, Michal Jacobus | | | 1558 | RSA | 0.00 | 1 | -0.10 | 40 | -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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