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Individual Calculations May 2011 |
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| West, James R Total change: 14.85 | |   |
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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 |
| 2143 | 2113 | 1.50 | 2 | 0.57 | 15 | 8.55 | |
|  Corke, Anya S | | wg | 2257 | ENG | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Chen, Kevin Emmanuel | | | 2029 | 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) | | | | 2011 New York March Open | New York, New York | USA | 2011-03-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2026 | 2135 | 1.50 | 2 | 0.20 | 15 | 3.00 | |
| | Char, H W | | | 2018 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | |  Miller, Jake S | | | 2033 | USA | 0.50 | 1 | -0.14 | 15 | -2.10 | |
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) | | | | 2011 Marshall April Grand Prix | New York, New York | USA | 2011-04-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2304 | 2135 | 0.50 | 1 | 0.22 | 15 | 3.30 | |
| | Melekhina, Alisa | f | wm | 2304 | USA | 0.50 | 1 | 0.22 | 15 | 3.30 | |
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) | | |
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