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Individual Calculations May 2011 |
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| Samuelson, Andrew Total change: 10.95 | |   |
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| 2011 World Amateur Team & US Team East | Parsippany, New Jersery | USA | 2011-02-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2286 | 2165 | 1.50 | 3 | 0.47 | 15 | 7.05 | |
|  Joshi, Sandy | f | | 2387 | USA | 0.50 | 1 | 0.28 | 15 | 4.20 | |  Friedman, Josef I | f | | 2178 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Ostrovskiy, Aleksandr | f | | 2294 | USA | 0.00 | 1 | -0.33 | 15 | -4.95 | |
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) | | | | 43rd Annual Virginia Open | McLean, Virginia | USA | 2011-03-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2134 | 2174 | 2.50 | 4 | 0.26 | 15 | 3.90 | |
| | Karell, Leif Kazuo | | | 2003 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Kaufman, Lawrence | g | | 2413 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Cohen, Harry S | | | 2063 | USA | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Yang, Charles | | | 2058 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | |
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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