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Individual Calculations September 2017 |
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| Hackett, Len Total change: -16.00 | |   |
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| Irish Championships 2017 Major | Ennis | IRL | 2017-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1812 | 1787 | 1.50 | 4 | -0.28 | 40 | -11.20 | |
|  Fitzpatrick, Kevin | | | 1405 | IRL | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Crichton, Martin | | | 1934 | IRL | 0.50 | 1 | 0.20 | 40 | 8.00 | |  Heinrich, Jan | | | 2001 | SVK | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Kiely, Paul C. | | | 1907 | IRL | 0.00 | 1 | -0.34 | 40 | -13.60 | |
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) | | | | Irish Championships 2017 Open | Ennis | IRL | 2017-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1651 | 1787 | 2.50 | 4 | -0.12 | 40 | -4.80 | |
| | Kirby, Con | | | 1387 * | IRL | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Shaughnessy, Elizabeth | | | 1478 | IRL | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Murray, David B. | | | 2110 | IRL | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Carroll, Peter | | | 1627 | IRL | 0.50 | 1 | -0.21 | 40 | -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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