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Individual Calculations September 2011 |
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| Katz, Benjamin Total change: -16.35 | |   |
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| 8th Annual Philadelphia International | Philadelphia, Pennsylvania | USA | 2011-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2052 | 2104 | 3.50 | 9 | -1.64 | 15 | -24.60 | |
|  Gerzhoy, Leonid | m | | 2496 | CAN | 0.00 | 1 | -0.08 | 15 | -1.20 | |  Nieto, Guillermo L | | | 1825 | COL | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Piasetski, Leon D | m | | 2301 | CAN | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Vazquez Maccarini, Danitza F | | wf | 1785 | PUR | 1.00 | 1 | 0.13 | 15 | 1.95 | | | Ardaman, Miles F | f | | 2301 | USA | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Nieto, Manuel V | | | 1847 | COL | 0.00 | 1 | -0.82 | 15 | -12.30 | | | Chan, James | | | 1987 | CAN | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Nieto, Manuel G | | | 1886 | COL | 0.50 | 1 | -0.28 | 15 | -4.20 | | | Altschuler, Jason | | | 2037 | USA | 0.00 | 1 | -0.59 | 15 | -8.85 | |
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) | | | | 39th Annual World Open - U2200 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2094 | 2104 | 3.50 | 6 | 0.43 | 15 | 6.45 | |
| | Steinberg, Max | | | 1971 | USA | 0.00 | 1 | -0.68 | 15 | -10.20 | | | Beilin, Solomon I | | | 2131 | USA | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Schemm, Michael A | | | 2163 | USA | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Koren, Eyal | | | 1962 | ISR | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Xu, Yuan | | | 2158 | USA | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Juac, Majur | | | 2178 | USA | 0.00 | 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) | | | | 2011 July FIDE Monday | New York, New York | USA | 2011-07-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2110 | 2104 | 2.50 | 4 | 0.53 | 15 | 7.95 | |
| | Rosenberg, Evan S | | | 2186 | USA | 0.00 | 1 | -0.39 | 15 | -5.85 | | | Frumkin, Edward A | | | 1958 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Sena, Juan | | | 2160 | DOM | 1.00 | 1 | 0.58 | 15 | 8.70 | | | West, James R | | | 2134 | USA | 0.50 | 1 | 0.04 | 15 | 0.60 | |
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 - U2300 Section | New York, New York | USA | 2011-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2126 | 2104 | 1.00 | 3 | -0.41 | 15 | -6.15 | |
| | Hendrickson, Nolan | | | 2135 | USA | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Schneider, Thomas G | | | 2060 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Friedman, Josef I | f | | 2182 | USA | 0.00 | 1 | -0.39 | 15 | -5.85 | |
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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