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Individual Calculations April 2009 |
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| Bonafont, Philip R Total change: -43.50 | |   |
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| London Christmas Open | Harrow | ENG | 2008-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1883 | 2126 | 1.50 | 4 | -1.67 | 15 | -25.05 | |
|  Iyengar, Ilya | | | 1920 | ENG | 1.00 | 1 | 0.24 | 15 | 3.60 | |  Jones, Victor G L | | | 1991 | ENG | 0.00 | 1 | -0.68 | 15 | -10.20 | | | Venmore-Rowland, Edward P C | | | 1844 | ENG | 0.50 | 1 | -0.34 | 15 | -5.10 | | | Periasamymanjula, Manibharathi | | | 1776 | ENG | 0.00 | 1 | -0.89 | 15 | -13.35 | |
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) | | | | Hastings Weekend Open | Hastings | ENG | 2009-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1979 | 2140 | 0.50 | 3 | -1.54 | 15 | -23.10 | |
| | Mathon, Dimitrij | | | 1790 | CZE | 0.00 | 1 | -0.89 | 15 | -13.35 | | | Puidokaita, Cristina | | | 2241 | LTU | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Williams, Peter A Jnr | | | 1906 | ENG | 0.50 | 1 | -0.29 | 15 | -4.35 | |
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 |
| 2091 | 2140 | 2.00 | 3 | 0.31 | 15 | 4.65 | |
| | Cutmore, Martin J | | | 2056 | ENG | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Lyell, Mark | f | | 2286 | ENG | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Lobo, Richard A | | | 1931 | ENG | 1.00 | 1 | 0.23 | 15 | 3.45 | |
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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