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Individual Calculations May 2023 |
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| Retnaraja, Ethan Total change: -108.80 | |   |
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| 2023 O2C Doeberl Cup Major | Canberra | AUS | 2023-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1629 | 1806 | 3.00 | 6 | -1.38 | 40 | -55.20 | |
|  Feng, Angela | | | 1627 | AUS | 0.00 | 1 | -0.73 | 40 | -29.20 | |  Shen, Fiona | | | 1595 | AUS | 0.50 | 1 | -0.27 | 40 | -10.80 | | | Gatzen-O`keefe, Thomas | | | 1554 | AUS | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Lee, Alexandre Km | | | 1650 | ENG | 0.50 | 1 | -0.21 | 40 | -8.40 | | | Hong, Xavier | | | 1641 | AUS | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Wang, Lachlan | | | 1704 | AUS | 0.00 | 1 | -0.64 | 40 | -25.60 | |
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) | | | | 2023 Oceania Youth Championship Under 16 | Canberra | AUS | 2023-04-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1478 | 1806 | 4.50 | 7 | -1.34 | 40 | -53.60 | |
| | Kong, Dexuan | | | 1380 | AUS | 0.00 | 1 | -0.93 | 40 | -37.20 | | | Liu, Kevin | | | 1210 | AUS | 1.00 | 1 | 0.02 | 40 | 0.80 | | | Zara, Baraa | | | 1399 | NZL | 0.50 | 1 | -0.42 | 40 | -16.80 | | | Jain, Arnav | | | 1406 * | AUS | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Chen, Austin | | | 1633 | AUS | 0.50 | 1 | -0.23 | 40 | -9.20 | | | Rupasinghe, Sayum | | | 1778 | AUS | 0.50 | 1 | -0.04 | 40 | -1.60 | | | Jiang, Renfei | | | 1539 | AUS | 1.00 | 1 | 0.18 | 40 | 7.20 | | | * 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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