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Individual Calculations December 2018 |
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| Sirkka, Pertti T Total change: 2.00 | |   |
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| 2018 Norths John Purdy Memorial Open | Sydney | AUS | 2018-09-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1710 | 1806 | 5.00 | 8 | 0.10 | 20 | 2.00 | |
|  Di-Ienno, Mathew | | | 1406 * | AUS | 0.50 | 1 | -0.42 | 20 | -8.40 | |  Laurie, Robert | | | 1548 | AUS | 1.00 | 1 | 0.18 | 20 | 3.60 | | | James, David | | | 1604 | AUS | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Hu, Jason | f | | 2115 | AUS | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Wan, Dennis | | | 1833 | AUS | 0.00 | 1 | -0.46 | 20 | -9.20 | | | Low, Frank | | | 1621 | AUS | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Murray, Bruce D | c | | 2008 | AUS | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Weijermars, Tristan | | | 1544 | AUS | 1.00 | 1 | 0.18 | 20 | 3.60 | | | * 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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