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Individual Calculations February 2013 |
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| Katz, Alexander Ross Total change: 4.35 | |   |
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| 31st Annual Empire City Open | New York, New York | USA | 2012-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2328 | 2250 | 3.50 | 6 | 1.01 | 15 | 15.15 | |
|  Ray, Sarathi | | | 2027 | USA | 1.00 | 1 | 0.22 | 15 | 3.30 | |  Sena, Juan | | | 2163 | DOM | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Fishbein, Alexander | g | | 2498 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Kudrin, Sergey | g | | 2531 | USA | 0.50 | 1 | 0.34 | 15 | 5.10 | | | Resika, Nathan A. | f | | 2154 | USA | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Izoria, Zviad | g | | 2595 | GEO | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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) | | | | 45th Annual Liberty Bell Open - Open Section | Philadelphia, Pennsylvania | USA | 2013-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2222 | 2250 | 2.00 | 5 | -0.72 | 15 | -10.80 | |
| | Williams, Jeremiah J | | | 2102 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Kudrin, Sergey | g | | 2531 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Zimmer, Ralph Patrick | f | | 2187 | USA | 0.00 | 1 | -0.59 | 15 | -8.85 | | | King, Alexander B | | | 2249 | USA | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Paulina, David | | | 2040 | USA | 0.50 | 1 | -0.27 | 15 | -4.05 | |
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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