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Individual Calculations August 2023 |
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| Colding, Ernest P Total change: -51.00 | |   |
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| 13th annual World Open Senior Amateur | Philadelphia, PA | USA | 2023-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1707 | 1985 | 3.00 | 4 | -0.25 | 20 | -5.00 | |
|  Johnson, Jeffery W | | | 1608 | USA | 0.50 | 1 | -0.41 | 20 | -8.20 | |  Ruiz, Jorge C | | | 1645 | USA | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Pritchett, Peter W | | | 1659 | USA | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Rea, Andrew B | | | 1917 | USA | 0.50 | 1 | -0.09 | 20 | -1.80 | |
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) | | | | 51st annual World Open - Open | Philadelphia, PA | USA | 2023-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1922 | 1985 | 3.00 | 9 | -2.30 | 20 | -46.00 | |
| | Chen, Ryo Wenyu | m | | 2406 | USA | 0.00 | 1 | -0.07 | 20 | -1.40 | | | Jin, Austin | | | 1723 | USA | 0.00 | 1 | -0.82 | 20 | -16.40 | | | Benedek, Roy | | | 1760 | USA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Karunakaran, Kapilan | | | 1766 | USA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Shibut, Macon A | f | | 2182 | USA | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Weng, Nicholas Ruogu | | | 1745 | USA | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Girsh, Daniel | | | 2123 | USA | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Aravindakshan, Sahana | | | 1791 | USA | 0.00 | 1 | -0.75 | 20 | -15.00 | | | Heller, Jack | | | 1800 | USA | 0.00 | 1 | -0.74 | 20 | -14.80 | |
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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