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Individual Calculations May 2011 |
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| Bonin, Jay Total change: 14.00 | |   |
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| 2011 World Amateur Team & US Team East | Parsippany, New Jersery | USA | 2011-02-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2220 | 2309 | 2.50 | 4 | 0.11 | 10 | 1.10 | |
|  Hungaski, Robert A | m | | 2446 | USA | 0.00 | 1 | -0.32 | 10 | -3.20 | |  Lunna, Todd W | | | 2242 | USA | 0.50 | 1 | -0.09 | 10 | -0.90 | | | Shi, Jason | | | 1934 | USA | 1.00 | 1 | 0.09 | 10 | 0.90 | | | Thaler, Michael | | | 2257 | USA | 1.00 | 1 | 0.43 | 10 | 4.30 | |
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 New York March Open | New York, New York | USA | 2011-03-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2175 | 2296 | 2.00 | 3 | 0.03 | 10 | 0.30 | |
| | Black Jr, James A | | | 2094 | USA | 0.50 | 1 | -0.26 | 10 | -2.60 | | | Marshall, Abby S | | wf | 2135 | USA | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Ostrovskiy, Aleksandr | f | | 2295 | USA | 0.50 | 1 | 0.00 | 10 | 0.00 | |
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 Marshall April Grand Prix | New York, New York | USA | 2011-04-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2197 | 2296 | 3.00 | 4 | 0.49 | 10 | 4.90 | |
| | Margiotta, Jason J | | | 1994 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Polyakin, Vladimir | | | 2104 | USA | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Black Jr, James A | | | 2094 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Gelashvili, Tamaz | g | | 2596 | GEO | 0.00 | 1 | -0.15 | 10 | -1.50 | |
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) | | | | 2nd Annual Philadelphia Open | Philadelphia, Pennsylvania | USA | 2011-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2274 | 2296 | 5.50 | 9 | 0.77 | 10 | 7.70 | |
| | Gelashvili, Tamaz | g | | 2596 | GEO | 0.50 | 1 | 0.35 | 10 | 3.50 | | | Matamoros, Carlos | g | | 2549 | ECU | 1.00 | 1 | 0.81 | 10 | 8.10 | | | Chiang, Sarah | | wc | 1936 | USA | 1.00 | 1 | 0.10 | 10 | 1.00 | | | Perelshteyn, Eugene | g | | 2533 | USA | 0.00 | 1 | -0.20 | 10 | -2.00 | | | Shetty, Atulya A | | | 2094 | USA | 0.50 | 1 | -0.26 | 10 | -2.60 | | | Hua, David | | | 2013 | USA | 0.50 | 1 | -0.34 | 10 | -3.40 | | | Cao, Kevin Y | | | 2103 | USA | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Milman, Lev | m | | 2462 | USA | 0.00 | 1 | -0.28 | 10 | -2.80 | | | Gu, Christopher | | | 2180 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | |
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) | | |
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