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Individual Calculations May 2012 |
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| Sergatskov, Dmitri Total change: -5.70 | |   |
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| 8th North American Amateur Open | Skokie, Illinois | USA | 2012-03-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1722 | 1994 | 1.00 | 1 | 0.17 | 30 | 5.10 | |
|  Craigmile, Charles | | | 1722 | USA | 1.00 | 1 | 0.17 | 30 | 5.10 | |
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) | | | | 9th North American Amateur Open - 2nd Scott Silvernan Memorial | Skokie, Illinois | USA | 2012-04-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2093 | 1994 | 0.00 | 1 | -0.36 | 30 | -10.80 | |
|  Acosta, Mariano A | | | 2093 | USA | 0.00 | 1 | -0.36 | 30 | -10.80 | |
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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