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Individual Calculations September 2009 |
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| He, Tianyi Total change: 52.75 | |   |
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| Southern California Championship Candidates | Garden Grove, California | USA | 2009-06-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2273 | 2107 | 2.50 | 3 | 1.65 | 25 | 41.25 | |
|  Iwamoto, Takashi | f | | 2260 | USA | 1.00 | 1 | 0.70 | 25 | 17.50 | |  Landaw, Julian W | | | 2286 | USA | 1.00 | 1 | 0.73 | 25 | 18.25 | | | Abrahamyan, Tatev | | wf | 2273 | USA | 0.50 | 1 | 0.22 | 25 | 5.50 | |
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) | | | | 14th Annual Pacific Coast Open | Agoura Hills, California | USA | 2009-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2079 | 2107 | 1.00 | 1 | 0.46 | 25 | 11.50 | |
| | Yee, Michael A | | | 2079 | USA | 1.00 | 1 | 0.46 | 25 | 11.50 | |
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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