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Individual Calculations March 2024 |
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| Rishworth, Justin Total change: -103.20 | |   |
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| 2024 Tshwane Chess Registration Tournament (A) | Pretoria | RSA | 2024-01-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1421 | 1349 | 0.50 | 5 | -1.54 | 40 | -61.60 | |
|  Lodi, Khotso | | | 1274 | RSA | 0.50 | 1 | -0.10 | 40 | -4.00 | |  Jones, William | | | 1588 | RSA | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Richter, Jan-Michael | | | 1548 | RSA | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Tissot, Van Patot Anton | | | 1430 | RSA | 0.00 | 1 | -0.39 | 40 | -15.60 | | | Yang, Alex | | | 1266 | RSA | 0.00 | 1 | -0.61 | 40 | -24.40 | |
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) | | | | 2024 Piet Robbertse Open Chess Tournament (A) | Pretoria | RSA | 2024-02-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1553 | 1349 | 1.00 | 4 | -0.03 | 40 | -1.20 | |
| | Magagula, Raymond | | | 1634 | RSA | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Mkotong, Boipelo | | | 1379 | RSA | 0.00 | 1 | -0.46 | 40 | -18.40 | | | Nel, Hayley | | | 1499 | RSA | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Vorster, Stephanus | | | 1698 | RSA | 1.00 | 1 | 0.89 | 40 | 35.60 | |
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) | | | | 2024 Blou Bul Open Chess Tournament (A) | Pretoria | RSA | 2024-02-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1439 | 1349 | 0.50 | 4 | -1.01 | 40 | -40.40 | |
| | Gandawa, Fortune | | | 1522 | RSA | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Jacobs, Calvin Nicholas | | | 1450 | RSA | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Chikwava, Ronald | | | 1370 | RSA | 0.00 | 1 | -0.47 | 40 | -18.80 | | | Rapholo, Motlatjo | | | 1415 | RSA | 0.50 | 1 | 0.09 | 40 | 3.60 | |
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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