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Individual Calculations January 2012 |
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| Helfst, Matt D Total change: 1.35 | |   |
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| 10th Annual Turkey Bowl | Fort Lauderdale, Florida | USA | 2011-11-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2148 | 1942 | 0.00 | 1 | -0.24 | 15 | -3.60 | |
|  Cooke, Eric N | | | 2148 | USA | 0.00 | 1 | -0.24 | 15 | -3.60 | |
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) | | | | 42nd Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2011-11-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2159 | 1942 | 1.00 | 3 | 0.33 | 15 | 4.95 | |
|  Chiang, Michael | | | 2165 | USA | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Drake, Jason M | | | 2145 | USA | 0.50 | 1 | 0.26 | 15 | 3.90 | | | Evans, Cory A | | | 2168 | USA | 0.50 | 1 | 0.29 | 15 | 4.35 | |
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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