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Individual Calculations April 2023 |
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| Coracas, Tass Total change: 14.40 | |   |
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| 2023 Chess Artists Club Championship Rounds 5-7 | Melbourne | AUS | 2023-03-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1558 | 1346 | 1.00 | 3 | 0.23 | 40 | 9.20 | |
|  Cook, Geoff L | | | 1488 | AUS | 1.00 | 1 | 0.69 | 40 | 27.60 | |  Chiverton, Fergus | | | 1760 | AUS | 0.00 | 1 | -0.07 | 40 | -2.80 | | | Zhang, Kevin W | | | 1427 | AUS | 0.00 | 1 | -0.39 | 40 | -15.60 | |
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 Ballarat Begonia Open | Ballarat | AUS | 2023-03-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1609 | 1346 | 1.00 | 4 | 0.13 | 40 | 5.20 | |
| | Loveband, Robert | | | 1749 | AUS | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Middleton, Jody | | wc | 1717 | AUS | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Kalina, Leo | | | 1669 | AUS | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Blacksmith, Erik | | | 1302 | 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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