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Individual Calculations December 2016 |
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| Roebuck, Derek Total change: -31.40 | |   |
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| e2e4 London Gatwick International Oct16 Major D | London | ENG | 2016-10-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1723 | 1684 | 3.00 | 9 | -1.04 | 20 | -20.80 | |
|  O Gorman, Brendan | | | 1750 | ENG | 0.50 | 1 | 0.09 | 20 | 1.80 | | | Matthews, Adrian M S | | | 1883 | ENG | 0.50 | 1 | 0.26 | 20 | 5.20 | |  Ortolani, Paolo | | | 1692 | ITA | 0.00 | 1 | -0.49 | 20 | -9.80 | | | Watson, Jacob | | | 1696 | ENG | 0.00 | 1 | -0.48 | 20 | -9.60 | | | Han, Yichen | | | 1636 | NED | 0.50 | 1 | -0.07 | 20 | -1.40 | | | Papier, Alan | | | 1740 | ENG | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Doran, Niall | | | 1698 | IRL | 0.00 | 1 | -0.48 | 20 | -9.60 | | | Brown, Geoffrey D | | | 1568 | ENG | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Mihalca, Imre-Gheorghe | | | 1843 | ROU | 0.50 | 1 | 0.21 | 20 | 4.20 | |
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) | | | | Central London Chess Congress Major 2016 | London | ENG | 2016-11-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1754 | 1684 | 1.50 | 5 | -0.53 | 20 | -10.60 | |
| | McDonnell, James J. | | | 1859 | IRL | 0.00 | 1 | -0.27 | 20 | -5.40 | | | O Gorman, Brendan | | | 1750 | ENG | 1.00 | 1 | 0.59 | 20 | 11.80 | | | Mc Aleenan, Charles | | | 1792 | SCO | 0.00 | 1 | -0.35 | 20 | -7.00 | | | Eefting, Martijn | | | 1741 | ENG | 0.00 | 1 | -0.42 | 20 | -8.40 | | | Leko, Ian E | | | 1626 | ENG | 0.50 | 1 | -0.08 | 20 | -1.60 | |
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) | | |
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