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Individual Calculations September 2011 |
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| Sen, Samir Total change: -1.50 | |   |
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| 2011 North American Youth Championship - U16 Open | Tarrytown, New York | USA | 2011-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2093 | 2133 | 1.50 | 4 | -0.72 | 30 | -21.60 | |
|  Katz, Alexander R | | | 2158 | USA | 0.50 | 1 | 0.03 | 30 | 0.90 | | | Qin, Ziyi | | | 2159 | CAN | 0.50 | 1 | 0.04 | 30 | 1.20 | |  Hughes, John | | | 2048 | USA | 0.00 | 1 | -0.62 | 30 | -18.60 | | | Li, Brian S | | | 2006 | USA | 0.50 | 1 | -0.17 | 30 | -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) | | | | 39th Annual World Open - U2200 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2095 | 2133 | 4.50 | 6 | 1.19 | 30 | 35.70 | |
| | Seyhanoglu, Deniz | | | 2065 | TUR | 1.00 | 1 | 0.41 | 30 | 12.30 | | | Roring, Tres | | | 2007 | USA | 1.00 | 1 | 0.33 | 30 | 9.90 | | | Juac, Majur | | | 2178 | USA | 0.00 | 1 | -0.44 | 30 | -13.20 | | | Weiner, Zachary J | | | 1997 | USA | 1.00 | 1 | 0.32 | 30 | 9.60 | | | Shakhnazarov, Oleg | | | 2143 | USA | 0.50 | 1 | 0.01 | 30 | 0.30 | | | Tan, Oscar L | | | 2179 | PHI | 1.00 | 1 | 0.56 | 30 | 16.80 | |
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) | | | | Portland Chess Club Centennial Open | Portland, Oregon | USA | 2011-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2252 | 2128 | 0.50 | 3 | -0.52 | 30 | -15.60 | |
| | Cheng, Bindi | f | | 2385 | CAN | 0.00 | 1 | -0.18 | 30 | -5.40 | | | Lee, Andy C | f | | 2231 | USA | 0.00 | 1 | -0.36 | 30 | -10.80 | | | Patterson, Roger | | | 2141 | CAN | 0.50 | 1 | 0.02 | 30 | 0.60 | |
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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