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Individual Calculations July 2012 |
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| Willathgamuwa, Rowan Total change: -11.10 | |   |
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| Asian Amateur Championship 2012 | Sydney | AUS | 2012-06-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1852 | 1690 | 0.50 | 4 | -0.71 | 15 | -10.65 | |
|  Lester, George E | | | 2018 | AUS | 0.00 | 1 | -0.13 | 15 | -1.95 | | | McGuirk, Michael | | | 1883 | AUS | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Al-Harmoudi, Mona | | wm | 1794 | UAE | 0.00 | 1 | -0.36 | 15 | -5.40 | |  Christian, Kashish | | | 1712 | AUS | 0.50 | 1 | 0.03 | 15 | 0.45 | |
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) | | | | NSW Open 2012 | Sydney | AUS | 2012-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2019 | 1690 | 0.50 | 4 | -0.03 | 15 | -0.45 | |
| | Bolens, Johny | | | 2090 * | AUS | 0.50 | 1 | 0.42 | 15 | 6.30 | | | Bernardino J., Al | | | 2090 * | PHI | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Milligan, Helen | | wf | 1976 | NZL | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Kordahi, Nicholas | | | 1920 | AUS | 0.00 | 1 | -0.21 | 15 | -3.15 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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