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Individual Calculations February 2019 |
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| O`connell, Gerard Total change: -26.20 | |   |
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| LCU Armstrong Cup 2018-19 Rounds 5-6 | Dublin | IRL | 2018-12-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1941 | 2122 | 0.50 | 2 | -0.95 | 20 | -19.00 | |
|  Kennedy, John P. A. | | | 2039 | IRL | 0.00 | 1 | -0.61 | 20 | -12.20 | |  Scott, Luke | | | 1842 | IRL | 0.50 | 1 | -0.34 | 20 | -6.80 | |
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) | | | | The Irish O-50 and O-65 Championships 2019 | Dublin | IRL | 2019-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1952 | 2120 | 4.50 | 7 | -0.36 | 20 | -7.20 | |
| | Scott, Shay | | | 1720 * | IRL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Killane, Jack | | | 1839 | IRL | 1.00 | 1 | 0.16 | 20 | 3.20 | | | O`dwyer, Fergal | | | 1928 | IRL | 0.50 | 1 | -0.25 | 20 | -5.00 | | | Harding, Tim | c | | 2031 | IRL | 1.00 | 1 | 0.38 | 20 | 7.60 | | | Wallace, Paul | | | 2133 | IRL | 0.00 | 1 | -0.48 | 20 | -9.60 | | | Doyle, Anthony | | | 2210 | IRL | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Twomey, Pat | | | 1800 | IRL | 1.00 | 1 | 0.13 | 20 | 2.60 | | | * 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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