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Individual Calculations November 2023 |
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| Ong, Jonathan Si Seng Total change: 11.60 | |   |
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| 2023 John Purdy Memorial Major Rounds 6-9 | Sydney | AUS | 2023-10-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1554 | 1374 | 1.50 | 4 | 0.29 | 40 | 11.60 | |
|  Cai, Yihong | | | 1436 | CHN | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Chen, Dean | | | 1593 | AUS | 0.00 | 1 | -0.22 | 40 | -8.80 | |  Abbott, Peter | c | | 1822 | AUS | 0.50 | 1 | 0.44 | 40 | 17.60 | | | Majumder, Harun | | | 1363 | AUS | 0.00 | 1 | -0.52 | 40 | -20.80 | |
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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