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Individual Calculations November 2009 |
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| Porter, Ryan W Total change: 4.95 | |   |
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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 |
| 2206 | 2269 | 3.00 | 5 | 0.17 | 15 | 2.55 | |
|  Zhang, Eric R | | | 1869 * | USA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Kraai, Jesse | g | | 2527 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | |  Tan, Jared E | | | 2025 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Funderburg, John | | | 2096 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Sevillano, Enrico | m | | 2512 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | * 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) | | | | 2009 Los Angeles Open | Los Angeles, California | USA | 2009-10-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2201 | 2269 | 3.00 | 5 | 0.16 | 15 | 2.40 | |
| | Gray, William | | | 1869 * | USA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Khachiyan, Melikset | g | | 2528 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Brown, Michael W | | | 2037 | USA | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Yanayt, Eugene | f | | 2186 | USA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Peters, Jack | m | | 2386 | USA | 0.00 | 1 | -0.34 | 15 | -5.10 | | | * 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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