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Individual Calculations May 2011 |
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| Sandager, Stephen Total change: -29.55 | |   |
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| 2011 Southern Rocky FIDE Open | Albuquerque, New Mexico | USA | 2011-02-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2350 | 2155 | 1.00 | 3 | 0.14 | 15 | 2.10 | |
|  Khachiyan, Melikset | g | | 2518 | USA | 0.00 | 1 | -0.10 | 15 | -1.50 | |  Grinberg, Matthew | | | 2066 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Zierk, Steven C | m | | 2466 | USA | 0.00 | 1 | -0.14 | 15 | -2.10 | |
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 |
| 2019 | 2164 | 4.00 | 9 | -2.11 | 15 | -31.65 | |
| | Fan, Yun | | wf | 2064 | USA | 0.00 | 1 | -0.64 | 15 | -9.60 | | | Stopa, Jacek | m | | 2453 | POL | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Strenzwilk, Denis | | | 2054 | USA | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Winter, Curtis A | | | 1903 | USA | 0.00 | 1 | -0.82 | 15 | -12.30 | | | Chiang, Jonathan | | | 1764 * | USA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Pillai, Kadhir A | | | 1986 | USA | 0.00 | 1 | -0.73 | 15 | -10.95 | | | O`Brien, Matthew J | | | 1871 | USA | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Amarasinghe, Prashantha | | | 2027 | SRI | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Lucente, Mike | | | 2047 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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