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Individual Calculations September 2011 |
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| Chiang, Michael Total change: 76.65 | |   |
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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 |
| 2077 | 2092 | 1.50 | 3 | -0.07 | 15 | -1.05 | |
|  Katz, Alexander R | | | 2158 | USA | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Gusev, Nikita | | | 2066 | CAN | 0.00 | 1 | -0.54 | 15 | -8.10 | |  Li, Brian S | | | 2006 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | |
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 - U2400 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2179 | 2092 | 5.50 | 9 | 2.05 | 15 | 30.75 | |
| | Yanayt, Eugene | f | | 2240 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Moorthy, Srinivas | | | 1890 | USA | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Zlotnikov, Mikhail | m | | 2305 | USA | 0.50 | 1 | 0.27 | 15 | 4.05 | | | Formanek, Edward W | m | | 2234 | USA | 1.00 | 1 | 0.69 | 15 | 10.35 | | | Kleinman, Michael | | | 2195 | CAN | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Guo, Josh | | | 2123 | CAN | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Jones, Craig W | | | 2244 | USA | 1.00 | 1 | 0.70 | 15 | 10.50 | | | Parry, Matt J | | | 2240 | USA | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Reverby, Miro | | | 2143 | USA | 1.00 | 1 | 0.57 | 15 | 8.55 | |
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) | | | | 4th Annual Chicago Class | Wheeling, Illinois | USA | 2011-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2277 | 2062 | 1.50 | 3 | 0.75 | 15 | 11.25 | |
| | Sundararajan, Kidam | g | | 2462 * | IND | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Karagianis, Petros | | | 2210 | USA | 1.00 | 1 | 0.70 | 15 | 10.50 | | | Vibbert, Sean | | | 2159 | USA | 0.50 | 1 | 0.13 | 15 | 1.95 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 112th Annual US Open | Orlando, Florida | USA | 2011-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2286 | 2062 | 2.50 | 6 | 1.00 | 15 | 15.00 | |
| | Sarkar, Justin | m | | 2376 | USA | 0.50 | 1 | 0.36 | 15 | 5.40 | | | Gurevich, Dmitry | g | | 2462 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Xin, Samuel | | | 2022 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Haskel, Jeffrey | | | 2212 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Schlagenhauf, Mark | | | 2179 | NOR | 1.00 | 1 | 0.66 | 15 | 9.90 | | | Van Wely, Loek | g | | 2462 * | NED | 0.00 | 1 | -0.08 | 15 | -1.20 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 41st Annual Continental Open | Sturbridge, Massachusetts | USA | 2011-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2253 | 2062 | 1.50 | 5 | 0.16 | 15 | 2.40 | |
| | Kudrin, Sergey | g | | 2462 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Martirosov, Vadim | | | 2269 | USA | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Ryba, Andrew | | | 2152 | USA | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Fikiet, Alex Miche | | | 2233 | USA | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Castaneda, Andres | | | 2151 | USA | 1.00 | 1 | 0.62 | 15 | 9.30 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 |
| 2198 | 2062 | 2.50 | 4 | 1.22 | 15 | 18.30 | |
| | Jacobs, Jon | f | | 2291 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Friedman, Josef I | f | | 2182 | USA | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Manon-Og Jr, Ramon | | | 2158 | PHI | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Reverby, Miro | | | 2162 | USA | 1.00 | 1 | 0.64 | 15 | 9.60 | |
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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