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Individual Calculations January 2009 |
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| Privman, Boris Total change: -13.20 | |   |
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| What-A-Turkey Open | New York, NY | USA | 2008-11-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2218 | 2185 | 2.50 | 4 | 0.65 | 15 | 9.75 | |
|  Kats, Alena | | | 1981 | USA | 1.00 | 1 | 0.24 | 15 | 3.60 | |  Rhode, Michael A | g | | 2467 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Tamarkin, Lawrence | | | 2150 | USA | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Naranja, Renato C | m | | 2274 | PHI | 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) | | | | 39th Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2008-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2119 | 2185 | 2.00 | 6 | -1.53 | 15 | -22.95 | |
| | Sarkar, Justin | m | | 2451 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Chan, Julian M | | | 2071 | USA | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Weser, Adam | | | 2106 | USA | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Finney, Stuart S | | | 1883 | USA | 0.50 | 1 | -0.35 | 15 | -5.25 | | | Shen, Victor C | | | 2123 | USA | 0.00 | 1 | -0.59 | 15 | -8.85 | | | Mac Arthur, John | | | 2079 | USA | 0.50 | 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) | | |
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