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Individual Calculations September 2011 |
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| Chi, Patrick Total change: -14.40 | |   |
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| 2011 North American Youth Championship - U14 Open | Tarrytown, New York | USA | 2011-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2035 | 2060 | 2.00 | 4 | -0.05 | 30 | -1.50 | |
|  Gu, Christopher | | | 2227 | USA | 0.00 | 1 | -0.28 | 30 | -8.40 | | | Moon, Kyle | | | 2029 | USA | 0.00 | 1 | -0.54 | 30 | -16.20 | |  Kalra, Agastya | | | 1717 | CAN | 1.00 | 1 | 0.12 | 30 | 3.60 | | | Williams, Justus D | | | 2167 | USA | 1.00 | 1 | 0.65 | 30 | 19.50 | |
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 Northeast Open | Stamford, Connecticut | USA | 2011-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2108 | 2060 | 1.00 | 2 | 0.13 | 30 | 3.90 | |
| | Rozovsky, Daniel | f | | 2098 | USA | 0.50 | 1 | 0.05 | 30 | 1.50 | | | Privman, Boris | f | | 2117 | USA | 0.50 | 1 | 0.08 | 30 | 2.40 | |
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 |
| 2037 | 2060 | 0.50 | 2 | -0.56 | 30 | -16.80 | |
| | Barsky, Sam A | | | 2044 | USA | 0.00 | 1 | -0.52 | 30 | -15.60 | | | Richman, Jonathan | | | 2030 | USA | 0.50 | 1 | -0.04 | 30 | -1.20 | |
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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