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Individual Calculations September 2011 |
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| Ryba, Nicholas Total change: -2.70 | |   |
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| 39th Annual World Open - U2200 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2149 | 2105 | 1.50 | 3 | 0.19 | 15 | 2.85 | |
|  Malkiel, Daniel E | | | 2221 | USA | 0.50 | 1 | 0.16 | 15 | 2.40 | |  Krause, Benjamin | | | 2204 | USA | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Xin, Samuel L | | | 2022 | USA | 0.50 | 1 | -0.11 | 15 | -1.65 | |
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) | | | | 2011 Manhattan Open - U2300 Section | New York, New York | USA | 2011-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2151 | 2105 | 0.50 | 2 | -0.37 | 15 | -5.55 | |
| | Kats, Alena | | wf | 2097 | USA | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Treger, Yefim | | | 2205 | USA | 0.50 | 1 | 0.14 | 15 | 2.10 | |
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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