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Individual Calculations February 2020 |
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| O`connell, Michael Joseph Total change: 54.40 | |   |
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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 |
| 1736 | 1402 | 3.50 | 6 | 2.72 | 20 | 54.40 | |
|  Jackson, Peter D. | | | 1798 | IRL | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Cassidy, Sydney | | | 1602 | IRL | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Scott, Peter | | | 1647 | IRL | 1.00 | 1 | 0.80 | 20 | 16.00 | | | Gibson, John F. | | | 1802 * | IRL | 1.00 | 1 | 0.92 | 20 | 18.40 | | | Dalling, Peter | c | | 1802 * | SWE | 0.00 | 1 | -0.08 | 20 | -1.60 | | | O`connell, Denis | | | 1763 | IRL | 1.00 | 1 | 0.90 | 20 | 18.00 | | | * 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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