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Individual Calculations September 2023 |
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| Del Rosario, Frisco Total change: 11.80 | |   |
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| 2023 Calchess Senior Championship | Berkeley, Ca | USA | 2023-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1745 | 1708 | 3.00 | 5 | 0.59 | 20 | 11.80 | |
|  Henderson, Se, Jr | | | 1489 | USA | 1.00 | 1 | 0.22 | 20 | 4.40 | |  Boyd, Thomas E | | | 1427 | USA | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Taylor, Timothy W | m | | 2103 | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Gran, Rahim | | | 1629 | USA | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Mazzarelli, Ariel Diego | | | 2075 | USA | 0.00 | 1 | -0.10 | 20 | -2.00 | |
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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