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Individual Calculations January 2009 |
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| Rabin, Evan Z Total change: 9.00 | |   |
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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 |
| 2085 | 2027 | 2.00 | 7 | -1.02 | 15 | -15.30 | |
|  Bonin, Jay | m | | 2353 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | |  Kennedy, Shernaz | | wm | 2030 | USA | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Ryba, Nicholas A | | | 2014 | USA | 0.00 | 1 | -0.52 | 15 | -7.80 | | | Ryba, Andrew | | | 2014 | USA | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Frumkin, Edward A | | | 2031 | USA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Sobo, Henry C | | | 2100 | USA | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Hellenschmidt, Andrew | | | 2053 | USA | 0.00 | 1 | -0.46 | 15 | -6.90 | |
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) | | | | 14th Annual Northeast Open | Stamford, Connecticut | USA | 2008-10-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2137 | 2027 | 3.00 | 5 | 1.14 | 15 | 17.10 | |
| | Romero, Steve | | | 2047 | USA | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Kudrin, Sergey | g | | 2377 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Chiang, Michael | | | 1950 | USA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Chan, Julian M | | | 2071 | USA | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Ten, Viktor | | | 2242 | KAZ | 0.50 | 1 | 0.27 | 15 | 4.05 | |
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) | | | | 39th Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2008-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2229 | 2027 | 2.00 | 6 | 0.48 | 15 | 7.20 | |
| | Esserman, Marc R | | | 2348 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Fleischman, Eric J | | | 2126 | USA | 1.00 | 1 | 0.64 | 15 | 9.60 | | | Heimann, Mark A | | | 2327 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Nikolayev, Igor A | f | | 2296 | USA | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Mac Arthur, John | | | 2079 | USA | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Filipovich, David | | | 2197 | CAN | 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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