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Individual Calculations November 2017 |
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| Perry, Roger L Total change: -32.00 | |   |
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| Merv Morrison Memorial 2017 | Auckland | NZL | 2017-10-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1828 | 2020 | 2.00 | 5 | -1.60 | 20 | -32.00 | |
|  Ning, Isabelle Yixuan | | | 1620 * | NZL | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Ha, Huy Minh (timothy) | | | 1690 | NZL | 1.00 | 1 | 0.12 | 20 | 2.40 | |  Milligan, Helen | c | wf | 1996 | NZL | 0.50 | 1 | -0.03 | 20 | -0.60 | | | Duneas, John | c | | 2023 | NZL | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Picken, Oliver | c | | 1810 | NZL | 0.00 | 1 | -0.77 | 20 | -15.40 | | | * 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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