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Individual Calculations May 2011 |
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| Helfst, Matt Total change: 11.10 | |   |
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| 19th Annual Southern Open | Orlando, Florida | USA | 2011-04-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2143 | 1924 | 0.00 | 3 | -0.72 | 15 | -10.80 | |
|  Wyde, David A | | | 2063 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | |  Denton, Bradley J | | | 2312 | USA | 0.00 | 1 | -0.09 | 15 | -1.35 | | | Mandelkern, Jeremy | | | 2054 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | |
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 Philadelphia Open | Philadelphia, Pennsylvania | USA | 2011-04-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2113 | 1924 | 3.00 | 6 | 1.46 | 15 | 21.90 | |
| | Shetty, Atulya A | | | 2094 | USA | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Kis, Lorand Bela | | | 2088 | USA | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Klings, Peter | | | 2164 | GER | 0.50 | 1 | 0.30 | 15 | 4.50 | | | Bierkens, Pieter A | | | 2137 | USA | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Schwartz, Maxwell | | | 2090 | USA | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Heredia, Carla | | wm | 2102 | ECU | 0.50 | 1 | 0.23 | 15 | 3.45 | |
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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