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Individual Calculations November 2010 |
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| West, James R Total change: 6.15 | |   |
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| 2010 New Jersey State Championship | Somerset, New Jersey | USA | 2010-09-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2234 | 2104 | 2.00 | 4 | 0.60 | 15 | 9.00 | |
|  Chen, Kevin E | | | 2026 | USA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Ippolito, Dean J | m | | 2469 | USA | 0.00 | 1 | -0.10 | 15 | -1.50 | |  Zlotnikov, Mikhail | m | | 2304 | USA | 0.50 | 1 | 0.26 | 15 | 3.90 | | | Shen, Arthur | f | | 2138 | USA | 0.50 | 1 | 0.05 | 15 | 0.75 | |
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) | | | | 2010Marshall September Grand Prix | New York, New York | USA | 2010-09-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2076 | 2104 | 1.00 | 2 | -0.08 | 15 | -1.20 | |
| | Kopiecki, Edward P | | | 2097 | USA | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Kats, Alena | | | 2055 | USA | 0.50 | 1 | -0.07 | 15 | -1.05 | |
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) | | | | 2010 Marshall October Grand Prix | New York, New York | USA | 2010-10-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2066 | 2104 | 1.00 | 2 | -0.11 | 15 | -1.65 | |
| | Tom, George | | | 2034 | USA | 0.00 | 1 | -0.60 | 15 | -9.00 | | | Kopiecki, Edward P | | | 2097 | USA | 1.00 | 1 | 0.49 | 15 | 7.35 | |
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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