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Individual Calculations August 2021 |
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| Retnaraja, Ethan Total change: 103.20 | |   |
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| 2021 Checkmate FIDE Open | Adelaide | AUS | 2021-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1787 | 1604 | 2.00 | 4 | 0.75 | 40 | 30.00 | |
|  Jordan, William | f | | 2004 * | AUS | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Juszczynski, Mathew | | | 1682 | AUS | 1.00 | 1 | 0.61 | 40 | 24.40 | | | Leaver, Kyle | | | 2004 * | AUS | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Zhang, David | | | 1456 | AUS | 1.00 | 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) | | | | 2021 SA Under 18 & Under 16 Championship | Adelaide | AUS | 2021-07-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1577 | 1604 | 4.00 | 4 | 1.83 | 40 | 73.20 | |
| | Gibbons, Timothy | | | 1441 | AUS | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Bartley, George | | | 1844 | AUS | 1.00 | 1 | 0.80 | 40 | 32.00 | | | Maria, Alistair | | | 1460 | AUS | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Rahman, Raad | | | 1562 | AUS | 1.00 | 1 | 0.44 | 40 | 17.60 | |
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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