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Individual Calculations July 2009 |
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| Berg, George P Total change: -36.45 | |   |
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| 51st Nassau FIDE Futurity | Mineola, New York | USA | 2009-02-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1949 | 2103 | 6.00 | 10 | -0.86 | 15 | -12.90 | |
|  Chipkin, Leonard B | | | 2059 | USA | 0.50 | 1 | -0.06 | 15 | -0.90 | |  Lima, Louis | | | 1975 | USA | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Guevara, Robert | | | 2103 | USA | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Cortese, Anthony | | | 1841 | USA | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Kaplan, Ivan | | | 1768 | USA | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Chipkin, Leonard B | | | 2059 | USA | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Lima, Louis | | | 1975 | USA | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Guevara, Robert | | | 2103 | USA | 0.00 | 1 | -0.50 | 15 | -7.50 | | | Cortese, Anthony | | | 1841 | USA | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Kaplan, Ivan | | | 1768 | USA | 0.50 | 1 | -0.38 | 15 | -5.70 | |
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) | | | | Marshall CC FIDE Thursday | New York, NY | USA | 2009-02-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2025 | 2103 | 1.50 | 3 | -0.32 | 15 | -4.80 | |
| | Frumkin, Edward A | | | 2043 | USA | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Farber, Nelson M | | | 2003 | USA | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Santanna, Paulo | | | 2029 | USA | 1.00 | 1 | 0.40 | 15 | 6.00 | |
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) | | | | Marshall CC FIDE Thursdays | New York, NY | USA | 2009-04-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2099 | 2085 | 1.00 | 4 | -0.92 | 15 | -13.80 | |
| | Kathstede, Gerd | | | 2142 | GER | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Waxman, Marian | | | 2036 | USA | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Treger, Yefim | | | 2185 | USA | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Frumkin, Edward A | | | 2034 | USA | 0.50 | 1 | -0.07 | 15 | -1.05 | |
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) | | | | 2009 New York May Open | New York, New York | USA | 2009-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2137 | 2085 | 1.00 | 3 | -0.33 | 15 | -4.95 | |
| | Bonin, Jay | m | | 2369 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Kelleher, Jeff | | | 2091 | USA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Paciulli, Frank R | | | 1950 | 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) | | |
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