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Individual Calculations June 2023 |
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| Blackman, Katrina Total change: -34.60 | |   |
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| 2023 Heroes Day Cup - Challengers | Bridgetown | BAR | 2023-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1443 | 1668 | 3.00 | 7 | -2.35 | 20 | -47.00 | |
|  Roachford, Adam | | | 1526 | BAR | 0.00 | 1 | -0.69 | 20 | -13.80 | |  Reifer-Belle, Chanon | | | 1352 | BAR | 0.50 | 1 | -0.37 | 20 | -7.40 | | | La Touche, Cyprian | | | 1478 | BAR | 0.00 | 1 | -0.75 | 20 | -15.00 | | | Williams, Kanye | | | 1268 * | BAR | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Grant, Travis | | | 1323 | BAR | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Huyghues-Beaufond, Mathis | | | 1465 | FRA | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Figueroa, Julissa | | wc | 1691 | BAR | 0.50 | 1 | 0.03 | 20 | 0.60 | | | * 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) | | | | XIV Campeonato Continental Femenino de Ajedrez de las Americas 2023 | La Habana | CUB | 2023-05-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1866 | 1668 | 3.00 | 9 | 0.62 | 20 | 12.40 | |
| | Heredia Serrano, Carla | | wg | 2066 | ECU | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Mayorga Araya, Sofia | | wc | 1919 | CRC | 1.00 | 1 | 0.81 | 20 | 16.20 | | | Venzant Batista, Marcia Camila | | wf | 1998 | CUB | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Morales Santos, Natasha | | wm | 1899 | PUR | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Guo, Anni | | | 1831 | CAN | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Canales Chinchilla, Victoria | | | 1550 | CRC | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Cosme Contreras, Trilce | | wm | 1975 | PER | 0.50 | 1 | 0.36 | 20 | 7.20 | | | Valdes Boza, Aliett | | wf | 1810 | CUB | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Acevedo Mendez, Jennifer | | wf | 1746 | CRC | 0.50 | 1 | 0.11 | 20 | 2.20 | |
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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