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Individual Calculations January 2009 |
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| Margulis, Yevgeni Total change: -73.80 | |   |
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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 |
| 2204 | 2274 | 3.50 | 8 | -1.17 | 25 | -29.25 | |
|  Bonin, Jay | m | | 2353 | USA | 0.00 | 1 | -0.39 | 25 | -9.75 | |  Getz, Alec | f | | 2222 | USA | 0.00 | 1 | -0.57 | 25 | -14.25 | | | Frumkin, Edward A | | | 2031 | USA | 1.00 | 1 | 0.20 | 25 | 5.00 | | | Lenderman, Alex | m | | 2443 | USA | 0.00 | 1 | -0.28 | 25 | -7.00 | | | Berg, George P | | | 2100 | USA | 0.50 | 1 | -0.23 | 25 | -5.75 | | | Farber, Nelson M | | | 2011 | USA | 1.00 | 1 | 0.18 | 25 | 4.50 | | | Tuhrim, Richard | | | 2020 | USA | 1.00 | 1 | 0.19 | 25 | 4.75 | | | Sarkar, Justin | m | | 2451 | USA | 0.00 | 1 | -0.27 | 25 | -6.75 | |
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) | | | NOTE: K factor changed | | 2008 Pan American - Continental Championships | Boca Raton, Florida | USA | 2008-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2239 | 2274 | 2.50 | 8 | -1.89 | 15 | -28.35 | |
| | Shabalov, Alexander | g | | 2585 | USA | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Cooke, Eric N | | | 2191 | USA | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Kaufman, Raymond | f | | 2320 | USA | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Barros, Raul Junior | f | | 2002 | COL | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Palao, Maricela | | wm | 2083 | COL | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Garcia, Gildardo J | g | | 2410 | COL | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Santarius, Erik F | | | 2213 | USA | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Haskel, Jeffrey | | | 2106 | USA | 0.00 | 1 | -0.72 | 15 | -10.80 | |
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 | | What-A-Turkey Open | New York, NY | USA | 2008-11-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2041 | 2274 | 0.50 | 2 | -1.08 | 15 | -16.20 | |
| | Kats, Alena | | | 1981 | USA | 0.00 | 1 | -0.85 | 15 | -12.75 | | | Berg, George P | | | 2100 | USA | 0.50 | 1 | -0.23 | 15 | -3.45 | |
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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