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Individual Calculations September 2011 |
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| Sigurdsson, Birkir Karl Total change: 50.55 | |   |
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| Stigamot Hellis 2011 | Reykjavik | ISL | 2011-06-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1743 | 1535 | 1.50 | 3 | 0.67 | 15 | 10.05 | |
|  Stefansson, Vignir Vatnar | | | 1463 | ISL | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Vigfusson, Vigfus | | | 1935 * | ISL | 0.50 | 1 | 0.42 | 15 | 6.30 | |  Traustason, Ingi Tandri | | | 1830 | ISL | 0.00 | 1 | -0.15 | 15 | -2.25 | | | * 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) | | | | 8th South Wales International Open | Penarth | WLS | 2011-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1931 | 1546 | 3.50 | 9 | 2.70 | 15 | 40.50 | |
| | Bryant, Richard B E | | | 1946 * | ENG | 1.00 | 1 | 0.92 | 15 | 13.80 | | | Pleasants, Allan J | | | 1946 * | WLS | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Gosling, Brian G E | | | 1946 * | ENG | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Williams, Ron | | | 1876 | WLS | 0.50 | 1 | 0.38 | 15 | 5.70 | | | Van Diermen, Arie | | | 1946 * | NED | 1.00 | 1 | 0.92 | 15 | 13.80 | | | Pickering, Anthony | | | 1897 | AUS | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Puroila, Sippo | | | 1934 | FIN | 0.00 | 1 | -0.09 | 15 | -1.35 | | | Davis, Lee | | | 1946 * | WLS | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Auvinen, Esa | | | 1946 * | FIN | 0.50 | 1 | 0.42 | 15 | 6.30 | | | * 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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