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Individual Calculations December 2023 |
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| Costello, John Total change: -6.20 | |   |
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| LCU Ennis Shield Rounds 1-2 | Dublin | IRL | 2023-09-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1914 | 1720 | 0.00 | 1 | -0.25 | 20 | -5.00 | |
|  Kiely, Paul C. | | | 1914 | IRL | 0.00 | 1 | -0.25 | 20 | -5.00 | |
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) | | | | 2023 Isle of Man International, Major & Minor | Douglas | IOM | 2023-10-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1862 | 1720 | 2.00 | 6 | -0.06 | 20 | -1.20 | |
|  Allen, Keith | | | 2128 | IRL | 1.00 | 1 | 0.92 | 20 | 18.40 | | | Pert, Nina | | wc | 2044 | ENG | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Ireland, David J | | | 1897 | ENG | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Smith, Paul | | | 1653 | IOM | 0.00 | 1 | -0.59 | 20 | -11.80 | | | Griffin, John | | | 1646 | ENG | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Miah, Zahed | | | 1802 | IOM | 0.00 | 1 | -0.39 | 20 | -7.80 | |
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) | | |
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