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Individual Calculations September 2023 |
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| Brown, Jeffrey Allan Total change: 0.00 | |   |
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| 2023 Calchess Senior Championship | Berkeley, Ca | USA | 2023-06-09 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1547 | 0 | 0.50 | 4 | 0.00 | 1225 | | 0.00 | |
|  Gran, Rahim | | | 1629 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Oshima, Daniel T | | | 1642 | USA | 0.50 | 1 | 0.00 | | 0.00 | |  Henderson, Se, Jr | | | 1489 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Boyd, Thomas E | | | 1427 | USA | 0.00 | 1 | 0.00 | | 0.00 | |
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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