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Individual Calculations September 2009 |
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| Coraretti, Benjamin Total change: 22.35 | |   |
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| 2nd Annual Chicago Class Championships | Oak Brook, Illinois | USA | 2009-07-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2207 | 1967 | 2.50 | 5 | 1.49 | 15 | 22.35 | |
|  Santarius, Erik F | | | 2267 | USA | 0.50 | 1 | 0.35 | 15 | 5.25 | |  Stamnov, Aleksandar | f | | 2200 | MKD | 0.50 | 1 | 0.29 | 15 | 4.35 | | | Vaja, Ashish | | | 2195 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Szpisjak, Steven J | | | 2183 | USA | 1.00 | 1 | 0.78 | 15 | 11.70 | | | Iwu, Okechukwu Ane | | | 2189 | USA | 0.50 | 1 | 0.28 | 15 | 4.20 | |
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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