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Individual Calculations January 2013 |
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| Sonnis, Steve Total change: 37.50 | |   |
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| CCF Daytime Chess Club Autumn | London (Coulsdon) | ENG | 2012-09-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1740 | 1668 | 2.00 | 4 | 0.38 | 30 | 11.40 | |
|  Gold, Harry | | | 1511 | ENG | 1.00 | 1 | 0.29 | 30 | 8.70 | |  Clegg, Chris R A | | | 1849 | ENG | 0.00 | 1 | -0.26 | 30 | -7.80 | | | Norman, Nigel | | | 1758 | ENG | 0.50 | 1 | 0.12 | 30 | 3.60 | | | Fisher, Robert Hc | | | 1841 | ENG | 0.50 | 1 | 0.23 | 30 | 6.90 | |
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) | | | | London Chess Classic 2012: Open | London | ENG | 2012-12-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1963 | 1660 | 2.00 | 7 | 0.87 | 30 | 26.10 | |
| | Varnam, Liam D | | | 2060 * | ENG | 1.00 | 1 | 0.92 | 30 | 27.60 | | | Stachanczyk, Jacek | | | 2060 * | POL | 0.00 | 1 | -0.08 | 30 | -2.40 | | | Luncasu, Raul-Ionut | | | 2060 * | ROU | 0.00 | 1 | -0.08 | 30 | -2.40 | | | Casiot, David J | | | 1991 | ENG | 0.00 | 1 | -0.12 | 30 | -3.60 | | | Fields, Francis E | | | 1933 | ENG | 0.50 | 1 | 0.33 | 30 | 9.90 | | | Hajenius, Willem | | | 1922 | BEL | 0.00 | 1 | -0.18 | 30 | -5.40 | | | Fritzer, Friedrich | | | 1716 | AUT | 0.50 | 1 | 0.08 | 30 | 2.40 | | | * 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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