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Individual Calculations January 2009 |
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| Tamarkin, Lawrence Total change: -52.80 | |   |
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| 11th Queens Club Futurity | Jamaica, New York | USA | 2008-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2030 | 2150 | 4.00 | 10 | -2.60 | 15 | -39.00 | |
|  Frumkin, Edward A | | | 2049 | USA | 0.00 | 1 | -0.64 | 15 | -9.60 | |  Muwwakkil, Mulazim | | | 1966 | USA | 0.00 | 1 | -0.74 | 15 | -11.10 | | | Ryba, Andrew A | | | 2014 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Ryba, Nicholas A | | | 2014 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Lawson, Brian | | | 2108 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Frumkin, Edward A | | | 2049 | USA | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Muwwakkil, Mulazim | | | 1966 | USA | 0.50 | 1 | -0.24 | 15 | -3.60 | | | Ryba, Andrew A | | | 2014 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Ryba, Nicholas A | | | 2014 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Lawson, Brian | | | 2108 | USA | 0.00 | 1 | -0.56 | 15 | -8.40 | |
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) | | | | 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 |
| 2032 | 2150 | 1.50 | 3 | -0.47 | 15 | -7.05 | |
| | Kennedy, Shernaz | | wm | 2030 | USA | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Hellenschmidt, Andrew | | | 2053 | USA | 0.50 | 1 | -0.13 | 15 | -1.95 | | | Ryba, Andrew | | | 2014 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | |
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) | | | | What-A-Turkey Open | New York, NY | USA | 2008-11-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2185 | 2150 | 0.00 | 1 | -0.45 | 15 | -6.75 | |
| | Privman, Boris | f | | 2185 | USA | 0.00 | 1 | -0.45 | 15 | -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) | | |
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