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Individual Calculations August 2017 |
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| Hall, David G Total change: -62.20 | |   |
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| 2nd North Wales Fide Major | Llandudno | WLS | 2017-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1579 | 1831 | 3.00 | 5 | -1.03 | 40 | -41.20 | |
|  Roberts, Malcolm A | | | 1629 | ENG | 1.00 | 1 | 0.24 | 40 | 9.60 | |  Petkov, Petko (wls) | | | 1569 | WLS | 0.00 | 1 | -0.82 | 40 | -32.80 | | | Szwajkun, Richard | | | 1621 | ENG | 0.00 | 1 | -0.77 | 40 | -30.80 | | | Rathbone-Jones, Ifan | | | 1599 | WLS | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Best, Francis P | | | 1475 | ENG | 1.00 | 1 | 0.11 | 40 | 4.40 | |
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 | | Scottish U1850 Championship 2017 | Dundee | SCO | 2017-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1608 | 1831 | 2.00 | 4 | -1.05 | 20 | -21.00 | |
| | Smith, Mark J | | | 1431 * | SCO | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Walkowiak, Adam | | | 1705 | SCO | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Brown, Gerry | | | 1560 | SCO | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Clegg, Robert | | | 1734 | ENG | 0.00 | 1 | -0.63 | 20 | -12.60 | | | * 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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