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Individual Calculations February 2020 |
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| Cassidy, Sydney Total change: 6.40 | |   |
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| The Irish over 50 and over 65 Championships 2020 | Dublin | IRL | 2020-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1712 | 1602 | 3.00 | 7 | 0.32 | 20 | 6.40 | |
|  Quigley, Colm | | | 1956 | IRL | 0.00 | 1 | -0.11 | 20 | -2.20 | |  O`connell, Michael Joseph | | | 1402 | IRL | 0.50 | 1 | -0.26 | 20 | -5.20 | | | Fitzpatrick, Kevin | | | 1431 | IRL | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Grahn, Lars | | | 2002 * | SWE | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Fitzsimons, Pat | | | 1787 | IRL | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Donohoe, Eugene | | | 1599 | IRL | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Bermingham, Tony | | | 1804 | IRL | 0.00 | 1 | -0.24 | 20 | -4.80 | | | * 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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