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Individual Calculations December 2018 |
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| Richards, Allan Total change: 13.40 | |   |
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| 2018 Norths John Purdy Memorial Open | Sydney | AUS | 2018-09-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1688 | 1791 | 5.00 | 7 | 0.67 | 20 | 13.40 | |
|  Patel, Dhwani | | | 1391 * | AUS | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Jeffreys, Roger W | | | 1654 | AUS | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Ng, Clive | c | | 2027 | AUS | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Pepping, John M | | | 1580 | AUS | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Murray, Bruce D | c | | 2008 | AUS | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Creek, Peter | | | 1554 | AUS | 1.00 | 1 | 0.20 | 20 | 4.00 | | | James, David | | | 1604 | AUS | 1.00 | 1 | 0.26 | 20 | 5.20 | | | * 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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