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Individual Calculations August 2017 |
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| Petkov, Petko (wls) Total change: 86.40 | |   |
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| 2nd North Wales Fide Major | Llandudno | WLS | 2017-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1695 | 1569 | 3.50 | 4 | 2.15 | 40 | 86.00 | |
|  Kirkwood, Robin | | | 1667 | WLS | 1.00 | 1 | 0.63 | 40 | 25.20 | |  Hall, David G | | | 1831 | SCO | 1.00 | 1 | 0.82 | 40 | 32.80 | | | Gupta, Utkarsh | | | 1637 | IRL | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Soar, Timothy J | | | 1646 | WLS | 1.00 | 1 | 0.61 | 40 | 24.40 | |
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) | | | | Glorney Cup 2017 | Cardiff | WLS | 2017-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1834 | 1569 | 1.00 | 5 | 0.01 | 40 | 0.40 | |
| | Bond, Alexander | | | 1831 | SCO | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Nolan, Dermot | | | 1655 | IRL | 0.50 | 1 | 0.12 | 40 | 4.80 | | | Scott, Luke | | | 1748 | IRL | 0.50 | 1 | 0.23 | 40 | 9.20 | | | Forster, Matthew | | | 1969 * | ENG | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Chemla, Oscar | | | 1969 * | FRA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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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