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Individual Calculations April 2023 |
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| Ellis, David Total change: -7.00 | |   |
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| 2023 Southern Suburbs Open Rounds 3-7 | Perth | AUS | 2023-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1696 | 1770 | 2.00 | 4 | -0.28 | 20 | -5.60 | |
|  Holland, Dennis | | | 1858 | AUS | 0.50 | 1 | 0.12 | 20 | 2.40 | |  Soutar, Gavin | | | 1621 | AUS | 0.50 | 1 | -0.20 | 20 | -4.00 | | | Hardegen, Andrew | | | 1935 | AUS | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Moseley, Paul | | | 1370 * | AUS | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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) | | | | 2023 Metro Club Championship A-Division Rounds 5-7 plus postponed | Perth | AUS | 2023-03-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1869 | 1760 | 1.50 | 4 | -0.07 | 20 | -1.40 | |
| | O`mahoney, Keegan | | | 1888 | IRL | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Barry, David | | | 1671 | AUS | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Dunlop, Gordon | | | 1719 | AUS | 1.00 | 1 | 0.44 | 20 | 8.80 | | | Ferozkohi, Ihsan | | | 2197 | AUS | 0.00 | 1 | -0.06 | 20 | -1.20 | |
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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