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Individual Calculations September 2019 |
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| O`neill, Sam Total change: -28.80 | |   |
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| The Irish Championships 2019: Major | Dublin | IRL | 2019-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1694 | 1891 | 3.00 | 4 | 0.05 | 40 | 2.00 | |
|  Kirulis, Edgars | | | 1571 | IRL | 0.50 | 1 | -0.37 | 40 | -14.80 | |  Murphy, Cathal | | | 1605 | IRL | 1.00 | 1 | 0.16 | 40 | 6.40 | | | O`daly, Liam | | | 1700 | IRL | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Cullen, Ben | | | 1901 | IRL | 0.50 | 1 | 0.01 | 40 | 0.40 | |
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) | | | NOTE: K factor changed | | The Irish Championships 2019: Open Weekender | Dublin | IRL | 2019-08-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1546 | 1891 | 2.00 | 4 | -1.54 | 20 | -30.80 | |
| | Murray, Sam | | | 1584 | IRL | 0.50 | 1 | -0.36 | 20 | -7.20 | | | Kirby, Con | | | 1586 | IRL | 0.00 | 1 | -0.86 | 20 | -17.20 | | | Gamage, Vihanga | | | 1507 | IRL | 0.50 | 1 | -0.41 | 20 | -8.20 | | | O`hanlon, Joe | | | 1505 | IRL | 1.00 | 1 | 0.09 | 20 | 1.80 | |
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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