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Individual Calculations December 2016 |
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| Jeffreys, Roger W Total change: 50.00 | |   |
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| 2016 Norths John Purdy Memorial Open | Sydney | AUS | 2016-09-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1749 | 1612 | 3.50 | 7 | 1.25 | 40 | 50.00 | |
|  Sirkka, Pertti T | | | 1820 | AUS | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Cooper, Nicholas | | | 1806 | AUS | 0.00 | 1 | -0.25 | 40 | -10.00 | |  Zekic, Mirsad | | | 1668 | AUS | 1.00 | 1 | 0.58 | 40 | 23.20 | | | Russell, Paul | | | 1882 | AUS | 0.50 | 1 | 0.33 | 40 | 13.20 | | | Stern, David | | | 1736 | AUS | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Low, Frank | | | 1643 | AUS | 1.00 | 1 | 0.54 | 40 | 21.60 | | | Dickson, Ian C | | | 1690 | AUS | 0.50 | 1 | 0.11 | 40 | 4.40 | |
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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