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Individual Calculations May 2010 |
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| Barsky, Sam Total change: 1.50 | |   |
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| 2009 North Carolina Open Championship | Greensboro, North Carolina | USA | 2009-10-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2181 | 2091 | 1.00 | 4 | -0.53 | 15 | -7.95 | |
|  Giannatos, Peter L | | | 2108 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | |  Ardaman, Miles F | f | | 2312 | USA | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Potter, John R | | | 2206 | USA | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Mc Intosh, Shawn R | | | 2096 | USA | 0.00 | 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) | | | | 40th Annual World Amateur Team & US Tean East | Parsippany, New Jersey | USA | 2010-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2220 | 2073 | 2.00 | 3 | 1.08 | 15 | 16.20 | |
| | Barnett, Alexander | | | 2237 | USA | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Goldberg, Mitchell | f | | 2284 | USA | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Carswell Jr, Herbert | | | 2139 | USA | 1.00 | 1 | 0.59 | 15 | 8.85 | |
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) | | | | New York March Open | New York, New York | USA | 2010-03-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2077 | 2067 | 1.50 | 4 | -0.45 | 15 | -6.75 | |
| | Paciulli, Frank R | | | 1952 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Sturt, Raven M | | | 2119 | USA | 0.00 | 1 | -0.43 | 15 | -6.45 | | | West, James R | | | 2094 | USA | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Wu, Christopher | | | 2143 | USA | 0.00 | 1 | -0.40 | 15 | -6.00 | |
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) | | |
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