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Individual Calculations September 2023 |
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| Boabaid, Jorge Alberto Duardes Total change: 25.40 | |   |
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| Campeonato Brasileiro Senior 65 STD 2023 | Joao Pessoa PB | BRA | 2023-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1868 | 1746 | 2.50 | 5 | 0.54 | 20 | 10.80 | |
|  Pereira, Francisco Neris | | | 1476 | BRA | 1.00 | 1 | 0.17 | 20 | 3.40 | |  Carvalho, Herbert Abreu | f | | 2096 | BRA | 0.50 | 1 | 0.39 | 20 | 7.80 | | | Van Riemsdijk, Herman C | m | | 2263 | BRA | 0.00 | 1 | -0.04 | 20 | -0.80 | | | Dantas, Francisco | | | 1906 | BRA | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Paiva, Luis Flavio Medeiros | | | 1601 | BRA | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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) | | | | Copa Francisco Trois STD 2023 | Porto Alegre RS | BRA | 2023-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1812 | 1746 | 2.00 | 3 | 0.73 | 20 | 14.60 | |
| | Marra, Eduardo Da Costa | f | | 2191 | BRA | 0.50 | 1 | 0.44 | 20 | 8.80 | | | Born, Ary | | | 1346 * | BRA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Backes, Jorge Henrique | | | 1900 | BRA | 0.50 | 1 | 0.21 | 20 | 4.20 | | | * 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) | | |
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