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Individual Calculations October 2021 |
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| Cooney, Brendan Total change: -14.20 | |   |
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| The 100th Irish Championships 2021 Final Weekender | Dublin | IRL | 2021-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1572 | 1818 | 3.00 | 5 | -1.02 | 20 | -20.40 | |
|  Hayden, Luke | | | 1581 | IRL | 0.00 | 1 | -0.80 | 20 | -16.00 | |  Fitzgerald, Martin | | | 1597 | IRL | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Donohoe, Eugene | | | 1608 | IRL | 0.50 | 1 | -0.27 | 20 | -5.40 | | | O`hanlon, Joe | | | 1507 | IRL | 0.50 | 1 | -0.36 | 20 | -7.20 | | | Scott, Shay | | | 1567 | IRL | 1.00 | 1 | 0.19 | 20 | 3.80 | |
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) | | | | 36th European Chess Club Cup 2021 | Struga | MKD | 2021-09-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1952 | 1818 | 2.00 | 5 | 0.31 | 20 | 6.20 | |
| | Kirszenberg, Marc | c | | 2139 | FRA | 0.50 | 1 | 0.37 | 20 | 7.40 | | | Andersen, Peter Vestergaard | | | 1833 | DEN | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Grant, David J | | | 2074 | ENG | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Johansson, Eva | | | 1847 | SWE | 0.50 | 1 | 0.04 | 20 | 0.80 | | | Bjugn, Gisle | | | 1867 | NOR | 0.50 | 1 | 0.07 | 20 | 1.40 | |
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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