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Individual Calculations November 2009 |
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| Gunawan, Cheston Total change: -7.50 | |   |
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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 |
| 2033 | 1857 | 0.50 | 3 | -0.32 | 25 | -8.00 | |
|  Tan, Jared E | | | 2025 | USA | 0.00 | 1 | -0.28 | 25 | -7.00 | |  Eng, Randel | | | 2001 | USA | 0.00 | 1 | -0.31 | 25 | -7.75 | | | Stevens, Lawrence | | | 2072 | USA | 0.50 | 1 | 0.27 | 25 | 6.75 | |
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 |
| 1872 | 1857 | 0.50 | 1 | 0.02 | 25 | 0.50 | |
| | Caen, Eric | | | 1872 | FRA | 0.50 | 1 | 0.02 | 25 | 0.50 | |
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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