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Individual Calculations September 2009 |
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| Yanayt, Eugene Total change: 6.15 | |   |
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| Southern California Championship Candidates | Garden Grove, California | USA | 2009-06-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2153 | 2207 | 1.00 | 2 | -0.15 | 15 | -2.25 | |
|  Lawrence, Danyul | | | 2075 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | |  Yurenok, Sergey | | | 2231 | USA | 0.00 | 1 | -0.47 | 15 | -7.05 | |
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) | | | | 37th Annual World Open - Under 2400 Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2263 | 2207 | 2.00 | 5 | -0.13 | 15 | -1.95 | |
| | Adamson, Robby | f | | 2302 | USA | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Rosenberg, Evan S | | | 2155 | USA | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Wang, Eigen | | | 2157 | USA | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Boor, Carl B | f | | 2291 | USA | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Sarkar, Justin | m | | 2410 | USA | 0.50 | 1 | 0.26 | 15 | 3.90 | |
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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2140 | 2180 | 3.50 | 5 | 0.69 | 15 | 10.35 | |
| | Cohen, Lawrence S | | | 2029 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Yermolinsky, Alex | g | | 2527 | USA | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Kelley, Dereque D | | | 2150 | USA | 0.00 | 1 | -0.54 | 15 | -8.10 | | | Danlag, Donald M | | | 2074 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Seitzer, Phillip | | | 1920 | USA | 1.00 | 1 | 0.18 | 15 | 2.70 | |
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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