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Individual Calculations September 2010 |
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| Plotkin, David A Total change: -8.00 | |   |
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| Marshall July Grand Prix | New York, New York | USA | 2010-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2136 | 2110 | 1.00 | 2 | 0.07 | 25 | 1.75 | |
|  Pressman, Leif A | | | 2098 | USA | 0.00 | 1 | -0.52 | 25 | -13.00 | |  Sturt, Raven M | | | 2173 | USA | 1.00 | 1 | 0.59 | 25 | 14.75 | |
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) | | | | 15th Annual Bradley Open | Windsor Locks, Connecticut | USA | 2010-07-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2095 | 2110 | 2.50 | 4 | 0.42 | 25 | 10.50 | |
| | Aaron, Deepak | | | 2144 | USA | 1.00 | 1 | 0.55 | 25 | 13.75 | | | Prilleltensky, Matan | | | 2096 | USA | 0.50 | 1 | -0.02 | 25 | -0.50 | | | Meredith, Matthew | | | 2015 | USA | 0.50 | 1 | -0.13 | 25 | -3.25 | | | Kis, Lorand B | | | 2124 | USA | 0.50 | 1 | 0.02 | 25 | 0.50 | |
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) | | | | 40th Annual Continental Open | Sturbridge, Massachusetts | USA | 2010-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2139 | 2110 | 1.50 | 5 | -0.81 | 25 | -20.25 | |
| | Times, Lawyer | | | 2084 | USA | 0.00 | 1 | -0.54 | 25 | -13.50 | | | Tuhrim, Richard J | | | 2101 | USA | 0.50 | 1 | -0.01 | 25 | -0.25 | | | Markzon, Gregory | f | | 2215 | USA | 0.50 | 1 | 0.14 | 25 | 3.50 | | | Torres, Yelfry | | | 2177 | DOM | 0.50 | 1 | 0.09 | 25 | 2.25 | | | Ryba, Andrew | | | 2119 | USA | 0.00 | 1 | -0.49 | 25 | -12.25 | |
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) | | |
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