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Individual Calculations September 2010 |
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| Guevara, Robert Ne Total change: 2.25 | |   |
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| 38th Annual World Open - Open Section | King of Prussia, Pennsylvania | USA | 2010-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2025 | 2103 | 0.50 | 1 | -0.11 | 15 | -1.65 | |
|  Ulrich, Tommy | | | 2025 | USA | 0.50 | 1 | -0.11 | 15 | -1.65 | |
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) | | | | 16th Annual Northeast Open | Stamford, Connecticut | USA | 2010-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2168 | 2103 | 1.50 | 3 | 0.26 | 15 | 3.90 | |
| | Privman, Boris | f | | 2122 | USA | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Pressman, Leif A | | | 2098 | USA | 0.50 | 1 | -0.01 | 15 | -0.15 | |  Shapiro, Daniel E | f | | 2285 | USA | 0.00 | 1 | -0.26 | 15 | -3.90 | |
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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