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Individual Calculations November 2009 |
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| Gray, William Total change: -14.75 | |   |
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| Max Wilkerson Tuesday Night Marathon | San Francisco, California | USA | 2009-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1620 | 1827 | 0.50 | 2 | -1.03 | 25 | -25.75 | |
|  Dembling, Arthur | | | 1588 | USA | 0.50 | 1 | -0.30 | 25 | -7.50 | |  Todortsev, Victor | | | 1652 | USA | 0.00 | 1 | -0.73 | 25 | -18.25 | |
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) | | | | 2009 Los Angeles Open | Los Angeles, California | USA | 2009-10-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2099 | 1830 | 1.00 | 3 | 0.44 | 25 | 11.00 | |
| | Porter, Ryan W | f | | 2230 * | USA | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Popova, Elena | | | 2049 | RUS | 0.50 | 1 | 0.28 | 25 | 7.00 | | | Field, Frederick W | | | 2018 | USA | 0.50 | 1 | 0.24 | 25 | 6.00 | | | * 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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