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Individual Calculations November 2009 |
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| Zhang, Eric R Total change: 48.90 | |   |
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| 31st Annual Southern California Open | San Diego, California | USA | 2009-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2257 | 1868 | 2.50 | 5 | 2.07 | 15 | 31.05 | |
|  Banawa, Joel | f | | 2268 * | USA | 1.00 | 1 | 0.92 | 15 | 13.80 | |  Porter, Ryan W | f | | 2268 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Formanek, Edward W | m | | 2253 | USA | 1.00 | 1 | 0.91 | 15 | 13.65 | | | Carreto, Giovanni | c | | 2228 | MEX | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Small, Gregg H | f | | 2268 * | USA | 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) | | | | 2009 Los Angeles Open | Los Angeles, California | USA | 2009-10-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2135 | 1868 | 2.00 | 4 | 1.19 | 15 | 17.85 | |
| | Sevillano, Enrico | m | | 2268 * | USA | 0.50 | 1 | 0.42 | 15 | 6.30 | | | Yanayt, Eugene | f | | 2186 | USA | 0.50 | 1 | 0.37 | 15 | 5.55 | | | Hermansen, Ron | | | 2215 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Caen, Eric | | | 1872 | FRA | 1.00 | 1 | 0.51 | 15 | 7.65 | | | * 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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