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Individual Calculations September 2023 |
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| Pereira Fo, Hildebrando Apolonio Total change: 5.00 | |   |
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| VIII Aberto do Brasil de Xadrez Taca Cidade de Teresina | Teresina PI | BRA | 2023-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1909 | 1505 | 0.50 | 3 | 0.17 | 20 | 3.40 | |
|  Soares, Joaquim Domingos | | | 2141 | BRA | 0.50 | 1 | 0.49 | 20 | 9.80 | | | Leao, Flavio Sanchez | | | 1830 | BRA | 0.00 | 1 | -0.13 | 20 | -2.60 | |  Lima Fo, Jose Pacifico | | | 1757 | BRA | 0.00 | 1 | -0.19 | 20 | -3.80 | |
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) | | | | Campeonato Brasileiro Senior 50 STD 2023 | Joao Pessoa PB | BRA | 2023-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1681 | 1487 | 1.50 | 5 | 0.08 | 20 | 1.60 | |
| | Silva, Jeferson | | | 1938 | BRA | 0.00 | 1 | -0.06 | 20 | -1.20 | | | Da Silva, Antonio Dutra | | | 1680 | BRA | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Abdalla, Umar Mohammad | | | 1334 | BRA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | De Oliveira, Lincoln Robert Lemos | | | 1681 | BRA | 0.00 | 1 | -0.25 | 20 | -5.00 | | | De Freitas, Rames Fialho | | | 1774 | BRA | 0.00 | 1 | -0.16 | 20 | -3.20 | |
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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