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Individual Calculations September 2009 |
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| Sobo, Henry C Total change: -16.65 | |   |
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| 15th Annual Northeast Open | Stamford, Connecticut | USA | 2009-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2228 | 2040 | 1.00 | 3 | 0.14 | 15 | 2.10 | |
|  Feuerstein, Arthur | | | 2106 | USA | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Chernin, Oliver | | | 2137 | USA | 0.50 | 1 | 0.13 | 15 | 1.95 | |  Rohde, Michael A | g | | 2440 * | USA | 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) | | | | 39th Annual Continental Open | Sturbridge, Massachusetts | USA | 2009-08-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2090 | 2040 | 0.50 | 4 | -1.25 | 15 | -18.75 | |
| | Thaler, Michael | | | 2235 | USA | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Times, Lawyer | | | 2020 | USA | 0.00 | 1 | -0.53 | 15 | -7.95 | | | Harris, David | | | 2077 | USA | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Rabin, Evan Z | | | 2026 | USA | 0.50 | 1 | -0.02 | 15 | -0.30 | |
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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