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Individual Calculations September 2011 |
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| Frumkin, Edward A Total change: 36.30 | |   |
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| 2011 Marshall June Grand Prix | New York, New York | USA | 2011-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2239 | 1985 | 1.50 | 4 | 0.69 | 15 | 10.35 | |
|  Thaler, Michael | | | 2244 | USA | 0.50 | 1 | 0.32 | 15 | 4.80 | |  Selzler, Richard | | | 2228 | USA | 1.00 | 1 | 0.80 | 15 | 12.00 | | | Kekelidze, Mikheil | g | | 2385 * | GEO | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Polyakin, Vladimir | | | 2097 | USA | 0.00 | 1 | -0.35 | 15 | -5.25 | | | * 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) | | | | 2011 Marshall July Grand Prix | New York, New York | USA | 2011-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2170 | 1958 | 1.00 | 2 | 0.54 | 15 | 8.10 | |
| | Treger, Yefim | | | 2205 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | | | West, James R | | | 2134 | USA | 1.00 | 1 | 0.73 | 15 | 10.95 | |
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) | | | | 2011 July FIDE Monday | New York, New York | USA | 2011-07-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2049 | 1958 | 1.50 | 4 | -0.02 | 15 | -0.30 | |
| | Rosenberg, Evan S | | | 2186 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Katz, Benjamin | | | 2104 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Yagiz, Bora | | | 1901 | USA | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Scher, Edward | | | 2005 | USA | 1.00 | 1 | 0.57 | 15 | 8.55 | |
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) | | | | 2011 Manhattan Open - Open Section | New York, New York | USA | 2011-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2173 | 1958 | 2.50 | 5 | 1.21 | 15 | 18.15 | |
| | Bonin, Jay | m | | 2323 | USA | 0.50 | 1 | 0.40 | 15 | 6.00 | | | Getz, Alec | f | | 2313 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Zenyuk, Iryna | c | wm | 2222 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Dadello, Andrzej | | | 1799 | POL | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Tarifa, Alket | | | 2206 | ENG | 1.00 | 1 | 0.81 | 15 | 12.15 | |
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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