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Individual Calculations April 2009 |
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| Tobisch, John Total change: 6.00 | |   |
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| London Christmas Open | Harrow | ENG | 2008-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2003 | 1896 | 1.00 | 3 | -0.09 | 25 | -2.25 | |
|  Coats, Robbie J | | | 1820 | ENG | 1.00 | 1 | 0.40 | 25 | 10.00 | |  Harborne, Matthew J | | | 2126 | ENG | 0.00 | 1 | -0.21 | 25 | -5.25 | | | Melnikovs, Svjatoslavs | | | 2062 | LAT | 0.00 | 1 | -0.28 | 25 | -7.00 | |
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) | | | | Uxbridge Open | Uxbridge | ENG | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2049 | 1891 | 1.50 | 4 | 0.33 | 25 | 8.25 | |
| | Truman, Richard G | | | 2028 | ENG | 0.50 | 1 | 0.18 | 25 | 4.50 | | | Foord, Dominic | | | 2043 | ENG | 0.50 | 1 | 0.20 | 25 | 5.00 | | | Doci, Stefan | | | 2052 | SVK | 0.50 | 1 | 0.21 | 25 | 5.25 | | | Adair, James | | | 2074 | ENG | 0.00 | 1 | -0.26 | 25 | -6.50 | |
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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