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Individual Calculations December 2017 |
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| James, David Total change: -15.00 | |   |
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| 2017 Norths John Purdy Memorial Open | Sydney | AUS | 2017-09-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1708 | 1663 | 2.00 | 6 | -0.75 | 20 | -15.00 | |
|  Hutchings, Frank P | | | 1926 | AUS | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Champion, Patrick | | | 1930 | AUS | 0.00 | 1 | -0.18 | 20 | -3.60 | |  Singleton, Tim | | | 1516 | AUS | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Feldman, Vladimir | m | | 2063 * | AUS | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Romanous, Steven | | | 1496 | AUS | 0.00 | 1 | -0.72 | 20 | -14.40 | | | Di-Ienno, Mathew | | | 1314 | AUS | 1.00 | 1 | 0.11 | 20 | 2.20 | | | * 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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