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Individual Calculations December 2018 |
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| Johnson, Andrew Total change: 21.60 | |   |
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| 2018 Norths John Purdy Memorial Open | Sydney | AUS | 2018-09-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1815 | 1553 | 2.50 | 7 | 1.08 | 20 | 21.60 | |
|  Kordahi, Nicholas | | | 1937 | AUS | 0.50 | 1 | 0.41 | 20 | 8.20 | |  Siva Sankaran, Anup Kumar | | | 1800 | IND | 1.00 | 1 | 0.81 | 20 | 16.20 | | | Tefanis, Frank | | | 1953 * | AUS | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Rodgers, Jack | | | 1953 * | AUS | 0.00 | 1 | -0.08 | 20 | -1.60 | | | James, David | | | 1604 | AUS | 1.00 | 1 | 0.57 | 20 | 11.40 | | | Balan, Jigando | | | 1795 | IND | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Sparks, Chris J | | | 1660 | AUS | 0.00 | 1 | -0.35 | 20 | -7.00 | | | * 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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