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Individual Calculations July 2008 |
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| Robson, Ray Total change: 8.10 | |   |
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| 2008 Frank K Berry U.S. Championship - Qualifier Fide Open | Tulsa, Oklahoma | USA | 2008-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2234 | 2389 | 4.50 | 7 | -0.36 | 10 | -3.60 | |
|  Airapetian, Chouchanik | | wf | 2092 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | |  Karagianis, Pete | | | 2201 | USA | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Yermolinsky, Alex | g | | 2522 | USA | 0.00 | 1 | -0.32 | 10 | -3.20 | | | Markzon, Gregory | f | | 2150 | USA | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Bick, John | f | | 2201 | USA | 0.00 | 1 | -0.74 | 10 | -7.40 | | | Aigner, Michael | | | 2242 | USA | 0.50 | 1 | -0.20 | 10 | -2.00 | | | Rowley, Robert | f | | 2231 | USA | 1.00 | 1 | 0.29 | 10 | 2.90 | |
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) | | | | 17th Annual Chicago Open | Wheeling, Illinois | USA | 2008-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2371 | 2433 | 3.50 | 6 | 0.04 | 10 | 0.40 | |
| | Akobian, Varuzhan | g | | 2601 | USA | 0.00 | 1 | -0.28 | 10 | -2.80 | | | Pereira, Silvio | | | 2291 | BRA | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Hernandez, Gilbert | g | | 2554 | MEX | 0.00 | 1 | -0.34 | 10 | -3.40 | | | Smith, Garrett | | | 2161 | USA | 0.50 | 1 | -0.33 | 10 | -3.30 | | | Bady, Glenn | | | 2229 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Pasalic, Mehmed | f | | 2392 | GER | 1.00 | 1 | 0.44 | 10 | 4.40 | |
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) | | | | 2008 National Open | Las Vegas, Nevada | USA | 2008-06-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2376 | 2433 | 4.50 | 6 | 1.13 | 10 | 11.30 | |
| | Gutman, Joshua | | | 2112 | USA | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Sandager, Stephen | | | 2165 | USA | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Akobian, Varuzhan | g | | 2601 | USA | 0.50 | 1 | 0.22 | 10 | 2.20 | | | Yermolinsky, Alex | g | | 2518 | USA | 0.50 | 1 | 0.12 | 10 | 1.20 | | | Erenburg, Sergey | g | | 2568 | ISR | 0.50 | 1 | 0.18 | 10 | 1.80 | | | Brigljevic, Milan | f | | 2293 | CRO | 1.00 | 1 | 0.31 | 10 | 3.10 | |
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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