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Individual Calculations October 2021 |
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| Macelligott, Gerard Total change: -0.20 | |   |
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| The 100th Irish Championships 2021 | Dublin | IRL | 2021-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1987 | 1966 | 4.50 | 9 | 0.12 | 20 | 2.40 | |
|  Murphy, Conor E. | f | | 2366 * | IRL | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Lyons, Brendan | | | 1931 | IRL | 0.00 | 1 | -0.55 | 20 | -11.00 | | | Collins, Adam | | | 1887 | IRL | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Burke, Kevin A. | | | 1883 | IRL | 1.00 | 1 | 0.39 | 20 | 7.80 | | | O`flaherty, Kevin | | | 1884 | IRL | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Murray, David | | | 2142 | IRL | 0.00 | 1 | -0.27 | 20 | -5.40 | | | O`gorman, Alice | | | 1907 | IRL | 0.50 | 1 | -0.08 | 20 | -1.60 | | | Casey, Eoghan | | | 1952 | IRL | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Putar, Lara | | | 1930 | IRL | 1.00 | 1 | 0.45 | 20 | 9.00 | | | * 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) | | | | The Irish over50 and over65 championship 2021 | Dublin | IRL | 2021-09-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1836 | 1966 | 3.00 | 5 | -0.13 | 20 | -2.60 | |
| | Reynolds, David W. | | | 1566 * | IRL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Donohoe, Eugene | | | 1608 | IRL | 1.00 | 1 | 0.10 | 20 | 2.00 | | | O`connor, Jonathan | | | 2153 | IRL | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Scott, Shay | | | 1567 | IRL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Daly, Colm | f | | 2285 | IRL | 0.00 | 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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