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Individual Calculations October 2021 |
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| Fitzpatrick, Kevin Total change: -6.20 | |   |
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| The 100th Irish Championships 2021 Weekday Open | Dublin | IRL | 2021-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1747 | 1463 | 1.00 | 2 | 0.64 | 20 | 12.80 | |
|  Melaugh, Shane | c | | 1863 * | IRL | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Wang, Zhengjn | | | 1630 | IRL | 1.00 | 1 | 0.72 | 20 | 14.40 | | | * 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 100th Irish Championships 2021 Final Weekender | Dublin | IRL | 2021-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1592 | 1463 | 0.00 | 4 | -1.33 | 20 | -26.60 | |
| | Farrelly, Eoin | | | 1686 | IRL | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Murray, Sam | | | 1621 | IRL | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Fitzgerald, Martin | | | 1597 | IRL | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Brady, Fearghal | | | 1463 | IRL | 0.00 | 1 | -0.50 | 20 | -10.00 | |
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 |
| 1580 | 1457 | 1.50 | 3 | 0.38 | 20 | 7.60 | |
| | O`connell, Gerard | | | 1857 * | IRL | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Maher, John | | | 1486 | IRL | 0.50 | 1 | 0.04 | 20 | 0.80 | | | Reynolds, David W. | | | 1397 | IRL | 1.00 | 1 | 0.42 | 20 | 8.40 | | | * 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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