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Individual Calculations May 2018 |
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| Ruane, Ciaran Total change: 20.60 | |   |
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| Armstrong Cup 2017-18 Rounds 9-10 | Various | IRL | 2018-02-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2199 | 1910 | 1.00 | 2 | 0.65 | 20 | 13.00 | |
|  Courtney, John | | | 2087 | IRL | 1.00 | 1 | 0.73 | 20 | 14.60 | |  Valdes Escobar, Alvaro | m | | 2310 * | CHI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * 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) | | | | National Club Championships 2018 | Athlone | IRL | 2018-04-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1640 | 1914 | 2.00 | 2 | 0.38 | 20 | 7.60 | |
| | Goss, Alex | | | 1766 | IRL | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Dunne, John P | | | 1514 * | IRL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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) | | |
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