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Individual Calculations November 2009 |
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| Peters, Jack Total change: -5.10 | |   |
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| Southern California Championship | Los Angeles, CA | USA | 2009-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2316 | 2385 | 3.00 | 7 | -1.12 | 10 | -11.20 | |
|  Morshedi, Ali | f | | 2290 | USA | 1.00 | 1 | 0.37 | 10 | 3.70 | |  Liu, Elliott Joseph | f | | 2356 | USA | 0.00 | 1 | -0.54 | 10 | -5.40 | | | Sevillano, Enrico | m | | 2528 | USA | 0.00 | 1 | -0.31 | 10 | -3.10 | | | Reynolds, Robert I | f | | 2290 | USA | 1.00 | 1 | 0.37 | 10 | 3.70 | | | Kretchetov, Alexandre | f | | 2365 | RUS | 0.00 | 1 | -0.53 | 10 | -5.30 | | | He, Tianyi | | | 2107 | USA | 0.00 | 1 | -0.83 | 10 | -8.30 | | | Abrahamyan, Tatev | | wf | 2273 | USA | 1.00 | 1 | 0.35 | 10 | 3.50 | |
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) | | | | 2009 Los Angeles Open | Los Angeles, California | USA | 2009-10-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2240 | 2386 | 4.00 | 5 | 0.61 | 10 | 6.10 | |
| | Harmon-Vellotti, Luke | | | 2048 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Tanaka, Christian | | | 2154 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Sevillano, Enrico | m | | 2512 | USA | 0.00 | 1 | -0.33 | 10 | -3.30 | | | Hermansen, Ron | | | 2215 | USA | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Porter, Ryan W | f | | 2269 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | |
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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