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Individual Calculations January 2009 |
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| Sobo, Henry C Total change: -25.50 | |   |
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| Edward Lasker Memorial and 92nd Annual Marshall Chess Club Championship | New York, New York | USA | 2008-10-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2123 | 2100 | 2.50 | 7 | -0.78 | 25 | -19.50 | |
|  Getz, Alec | f | | 2222 | USA | 0.50 | 1 | 0.17 | 25 | 4.25 | |  Hulse, Brian | | | 2224 | USA | 0.00 | 1 | -0.33 | 25 | -8.25 | | | Hellenschmidt, Andrew | | | 2053 | USA | 1.00 | 1 | 0.43 | 25 | 10.75 | | | Korley, Kassa | | | 2082 | USA | 0.00 | 1 | -0.53 | 25 | -13.25 | | | Rabin, Evan Z | | | 2027 | USA | 0.50 | 1 | -0.10 | 25 | -2.50 | | | Chernin, Oliver | | | 2150 | USA | 0.50 | 1 | 0.07 | 25 | 1.75 | | | Katz, Benjamin J | | | 2104 | USA | 0.00 | 1 | -0.49 | 25 | -12.25 | |
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) | | | NOTE: K factor changed | | 14th Annual Northeast Open | Stamford, Connecticut | USA | 2008-10-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2116 | 2100 | 1.50 | 4 | -0.40 | 15 | -6.00 | |
| | Feuerstein, Arthur | | | 2112 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Pattard, Thomas | | | 2134 | GER | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Panico Iii, Nick F | | | 2068 | USA | 0.00 | 1 | -0.54 | 15 | -8.10 | | | Chernin, Oliver | | | 2150 | USA | 0.00 | 1 | -0.43 | 15 | -6.45 | |
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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