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Individual Calculations October 2021 |
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| Reyneke, Luke Total change: -30.00 | |   |
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| 2021 Gauteng North Open (Section B) | Pretoria | RSA | 2021-08-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1308 | 1303 | 2.50 | 4 | 0.53 | 40 | 21.20 | |
|  Yang, Alex | | | 1128 | RSA | 1.00 | 1 | 0.27 | 40 | 10.80 | |  Manganye, Tshepiso | | | 1469 | RSA | 0.50 | 1 | 0.22 | 40 | 8.80 | | | Pape, Zane | | | 1435 | RSA | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Bouwer, Dane | | | 1200 | RSA | 1.00 | 1 | 0.36 | 40 | 14.40 | |
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) | | | | 2021 Etienne Lewis (U14 Open) | Pretoria | RSA | 2021-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1233 | 1303 | 0.50 | 3 | -1.28 | 40 | -51.20 | |
| | Yang, Alex | | | 1128 | RSA | 0.50 | 1 | -0.23 | 40 | -9.20 | | | Sathish, Abinavah | | | 1251 | RSA | 0.00 | 1 | -0.57 | 40 | -22.80 | | | Jacobs, Calvin Nicholas | | | 1320 | RSA | 0.00 | 1 | -0.48 | 40 | -19.20 | |
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) | | |
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