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Individual Calculations January 2015 |
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| O`brien, Matthew J Total change: -18.80 | |   |
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| 45th Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2014-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2035 | 2006 | 1.00 | 4 | -0.94 | 20 | -18.80 | |
|  Bartell, Thomas | m | | 2348 | USA | 0.00 | 1 | -0.12 | 20 | -2.40 | |  Chen, Andy | | | 2001 | USA | 0.00 | 1 | -0.51 | 20 | -10.20 | | | Tang, Arthur | | | 1897 | USA | 0.00 | 1 | -0.65 | 20 | -13.00 | | | Roach, Andrew | | | 1892 | USA | 1.00 | 1 | 0.34 | 20 | 6.80 | |
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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