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Individual Calculations September 2009 |
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| Treger, Yefim Total change: 3.60 | |   |
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| Marshall CC FIDE Thursdays | New York, NY | USA | 2009-05-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2070 | 2185 | 3.00 | 4 | 0.39 | 15 | 5.85 | |
|  Farber, Nelson M | | | 2001 | USA | 0.50 | 1 | -0.24 | 15 | -3.60 | |  Frumkin, Edward A | | | 2034 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Vicary, Elizabeth | | wf | 2153 | USA | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Kelleher, Jeff | | | 2091 | USA | 1.00 | 1 | 0.37 | 15 | 5.55 | |
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) | | | | 37th Annual World Open - Under 2400 Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2118 | 2185 | 4.00 | 7 | -0.15 | 15 | -2.25 | |
| | Rosenberg, Evan S | | | 2155 | USA | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Rosen, Eric S | | | 2142 | USA | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Collier, Philip M | | | 2106 | USA | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Shvartsman, Andrew | | | 2057 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Stancil, Kimani A | | | 2116 | USA | 0.00 | 1 | -0.60 | 15 | -9.00 | | | Sundar, Avinaash | | | 2093 | CAN | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Wang, Eigen | | | 2157 | USA | 1.00 | 1 | 0.46 | 15 | 6.90 | |
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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