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Individual Calculations July 2009 |
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| O`Donnell, Robert Total change: 5.85 | |   |
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| 18th Annual Chicago Open - Open Section | Wheeling, Illinois | USA | 2009-05-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2343 | 2048 | 1.00 | 4 | 0.39 | 15 | 5.85 | |
|  Garcia, Gildardo J | g | | 2398 | COL | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Adu, Oladapo O | m | | 2294 | NGR | 1.00 | 1 | 0.81 | 15 | 12.15 | | | Young, Angelo | m | | 2350 | PHI | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Lein, Anatoly Y | g | | 2328 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | |
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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