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Individual Calculations January 2010 |
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| Yang, Darwin Total change: 31.80 | |   |
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| 27th Annual Sands Regency - Western States Open | Reno, Nevada | USA | 2009-10-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2337 | 2282 | 3.00 | 5 | 0.78 | 15 | 11.70 | |
|  Michaelides, Matthew | | | 2163 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | |  Troff, Kayden W | | | 2174 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Ivanov, Alexander | g | | 2549 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Carreto, Giovanni | c | | 2228 | MEX | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Kudrin, Sergey | g | | 2573 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | |
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) | | | | 40th Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2009-11-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2295 | 2317 | 4.50 | 6 | 1.34 | 15 | 20.10 | |
| | Katz, Benjamin J | | | 2130 | USA | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Weser, Adam | | | 2103 | USA | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Finn, Sean N | | | 2189 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Fishbein, Alexander | g | | 2520 | USA | 1.00 | 1 | 0.76 | 15 | 11.40 | | | Ravichandran, Siddharth | | | 2422 | IND | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Esserman, Marc R | m | | 2408 | USA | 0.50 | 1 | 0.12 | 15 | 1.80 | |
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) | | |
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