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Individual Calculations December 2018 |
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| Romanous, Steven Total change: 22.00 | |   |
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| 2018 Norths John Purdy Memorial Open | Sydney | AUS | 2018-09-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1640 | 1487 | 1.50 | 3 | 0.55 | 40 | 22.00 | |
|  Siva Sankaran, Anup Kumar | | | 1800 | IND | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Hu, Kevin | | | 1482 | AUS | 1.00 | 1 | 0.49 | 40 | 19.60 | |  Woodward, Michael R | | | 1638 | AUS | 0.50 | 1 | 0.20 | 40 | 8.00 | |
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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