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Individual Calculations December 2017 |
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| Weijermars, Tristan Total change: 6.40 | |   |
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| 2017 Norths John Purdy Memorial Open | Sydney | AUS | 2017-09-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1690 | 1532 | 1.50 | 4 | 0.32 | 20 | 6.40 | |
|  Richards, Allan | | | 1797 | AUS | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Zekic, Mirsad | | | 1636 | AUS | 0.50 | 1 | 0.14 | 20 | 2.80 | | | Taffard, Christopher John | | | 1695 | NZL | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Wechsler, Ian B | | | 1631 | AUS | 1.00 | 1 | 0.64 | 20 | 12.80 | |
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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