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Individual Calculations September 2011 |
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| Xu, Yuan Total change: -28.80 | |   |
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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 |
| 2062 | 2158 | 2.50 | 6 | -1.20 | 30 | -36.00 | |
|  Chandra, Kevin | | | 1809 | USA | 0.50 | 1 | -0.39 | 30 | -11.70 | |  Del Castillo, William | | | 2194 | ECU | 0.50 | 1 | 0.05 | 30 | 1.50 | | | Xin, Samuel L | | | 2022 | USA | 0.50 | 1 | -0.18 | 30 | -5.40 | | | Mu, Joshua | | | 2145 | USA | 0.00 | 1 | -0.52 | 30 | -15.60 | | | Polyakin, Vladimir | | | 2097 | USA | 1.00 | 1 | 0.42 | 30 | 12.60 | | | Katz, Benjamin | | | 2104 | USA | 0.00 | 1 | -0.58 | 30 | -17.40 | |
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) | | | | 2011 Manhattan Open - U2300 Section | New York, New York | USA | 2011-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1956 | 2158 | 1.00 | 1 | 0.24 | 30 | 7.20 | |
| | Robinson, Darrian | | | 1956 | USA | 1.00 | 1 | 0.24 | 30 | 7.20 | |
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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