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Individual Calculations December 2017 |
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| O`callaghan, Scott Total change: -13.60 | |   |
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| 2017 Norths John Purdy Memorial Open | Sydney | AUS | 2017-09-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1741 | 1583 | 1.50 | 6 | -0.34 | 40 | -13.60 | |
|  Willathgamuwa, Kevin | c | | 1983 * | AUS | 0.50 | 1 | 0.42 | 40 | 16.80 | |  Wilson, Mark L | | | 1690 | AUS | 0.50 | 1 | 0.15 | 40 | 6.00 | | | Jain, Kamal | | | 1672 | AUS | 0.00 | 1 | -0.38 | 40 | -15.20 | | | Jeffreys, Roger W | | | 1649 | AUS | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Case, Ivan | | | 1716 | AUS | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Garner, Stephen J | | | 1733 | AUS | 0.00 | 1 | -0.30 | 40 | -12.00 | | | * 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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