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Individual Calculations October 2021 |
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| Cafolla, Peter Total change: -19.40 | |   |
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| The 100th Irish Championships 2021 | Dublin | IRL | 2021-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1959 | 1958 | 4.50 | 9 | -0.04 | 20 | -0.80 | |
|  Kanyamarala, Tarun | f | | 2358 * | IRL | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Aherne, John P. | | | 1903 | IRL | 1.00 | 1 | 0.42 | 20 | 8.40 | | | O`flaherty, Kevin | | | 1884 | IRL | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Venkatesan, Kavin | | | 2011 | IRL | 0.00 | 1 | -0.43 | 20 | -8.60 | | | Putar, Leon | | | 1918 | IRL | 0.00 | 1 | -0.56 | 20 | -11.20 | | | Murray, Sam | | | 1621 | IRL | 0.50 | 1 | -0.38 | 20 | -7.60 | | | Harding, Tim D | c | | 2003 | IRL | 0.50 | 1 | 0.06 | 20 | 1.20 | | | Putar, Lara | | | 1930 | IRL | 0.50 | 1 | -0.04 | 20 | -0.80 | | | Fox, Anthony | | | 2005 | IRL | 1.00 | 1 | 0.57 | 20 | 11.40 | | | * 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) | | | | Guimaraes Chess Open 2021 (PCT) | Guimaraes | POR | 2021-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1974 | 1958 | 4.00 | 8 | 0.10 | 20 | 2.00 | |
| | Msellek, Ilyass | f | | 2353 | FRA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Carvalho, Vitor Manuel Moreira | | | 1558 * | POR | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Naoum, Spyridon | | | 2288 | GRE | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Abdelkader Garstka, Adam | | | 1666 | ESP | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Garcia Martin, Marta | m | wg | 2317 | ESP | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Perez Sousa, Xabier | | | 1712 | ESP | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Ventura Bolet, Alexandre | | | 2224 | ESP | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Morais, Andre De Oliveira Conde | | | 1676 | POR | 1.00 | 1 | 0.16 | 20 | 3.20 | | | * 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) | | | | City of Dublin Masters 2021 | Dublin | IRL | 2021-09-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2054 | 1958 | 0.50 | 4 | -1.03 | 20 | -20.60 | |
| | Kanyamarala, Tarun | f | | 2275 | IRL | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Fox, Anthony | | | 2005 | IRL | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Vesga Izeta, Markel | | | 2050 | ESP | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Collins, Adam | | | 1887 | IRL | 0.00 | 1 | -0.60 | 20 | -12.00 | |
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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