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Individual Calculations July 2012 |
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| Berg, George P Total change: -18.30 | |   |
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| 2012 Marshall April Grand Prix | New York, New York | USA | 2012-04-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1866 | 2045 | 2.00 | 3 | -0.18 | 15 | -2.70 | |
|  Kunin, Pavel | | | 1845 | RUS | 1.00 | 1 | 0.24 | 15 | 3.60 | |  Kopiecki, Edward P | | | 1980 | USA | 0.00 | 1 | -0.59 | 15 | -8.85 | | | Aregbeyen, Aigboje | | | 1774 | USA | 1.00 | 1 | 0.17 | 15 | 2.55 | |
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) | | | | 2012 MCC May Grand Prix | New York, New York | USA | 2012-05-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2006 | 2088 | 2.50 | 4 | 0.12 | 15 | 1.80 | |
| | Bonin, Jay Richard | m | | 2329 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Regam, Jessica | | | 1860 | USA | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Aregbeyen, Aigboje | | | 1761 | USA | 1.00 | 1 | 0.13 | 15 | 1.95 | | | Busygin, Stanislav | | | 2075 | USA | 0.50 | 1 | -0.02 | 15 | -0.30 | |
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) | | | | 2nd Annual New Yorker Open - U2300 Section | New York, New York | USA | 2012-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1923 | 2088 | 3.00 | 5 | -0.58 | 15 | -8.70 | |
| | Regam, Jessica | | | 1860 | USA | 0.00 | 1 | -0.79 | 15 | -11.85 | | | Burke, John M | | | 1944 | USA | 0.00 | 1 | -0.69 | 15 | -10.35 | | | Scher, Edward | | | 1974 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Kostovetsky, Daniel | | | 1877 | USA | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Rade, Dan M | | | 1960 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | |
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) | | | | 2012 MCC June Grand Prix | New York, New York | USA | 2012-06-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2151 | 2088 | 1.00 | 2 | 0.14 | 15 | 2.10 | |
| | Ostrovskiy, Aleksandr | f | | 2322 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Widmaier, Marc | | | 1979 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | |
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) | | | | 5th New York International - U2200 Section | New York, New York | USA | 2012-06-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1953 | 2088 | 2.00 | 4 | -0.72 | 15 | -10.80 | |
| | Regam, Jessica | | | 1860 | USA | 0.00 | 1 | -0.79 | 15 | -11.85 | | | Frumkin, Edward A | | | 1958 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Kreitner, Ilan | | | 2024 | USA | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Greco, Anthony F | | | 1971 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | |
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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