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Individual Calculations January 2023 |
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| Simpson, Michael Total change: -6.40 | |   |
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| 2022 South African Junior Team Chess Championships (U18 Open) | Port Edward | RSA | 2022-12-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1464 | 2002 | 3.50 | 4 | -0.34 | 40 | -13.60 | |
|  Mokone, Gomolemo | | | 1602 * | RSA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Sparg, Nathan | | | 1417 | RSA | 1.00 | 1 | 0.02 | 40 | 0.80 | |  Lefyedi, Thatego | | | 1530 | RSA | 1.00 | 1 | 0.05 | 40 | 2.00 | | | Kotze, Christiaan | c | | 1305 | RSA | 0.50 | 1 | -0.49 | 40 | -19.60 | | | * 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) | | | | KRAAIFONTEIN OPEN 2022 (Championship) | Cape Town | RSA | 2022-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1816 | 2002 | 4.50 | 6 | 0.18 | 40 | 7.20 | |
| | Mnyasta, Tezihano | | | 1727 | RSA | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Nevin, Tyler | | | 1811 | RSA | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Rogov, Matfey | | | 1608 | FID | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Brander, Waylon | | | 1774 | RSA | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Bhawoodien, Shabir Hussain | f | | 1936 | RSA | 1.00 | 1 | 0.41 | 40 | 16.40 | | | Mfazwe, Lutho | | | 2042 | RSA | 1.00 | 1 | 0.56 | 40 | 22.40 | |
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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