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Individual Calculations May 2023 |
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| Boztas, Lana Total change: 20.20 | |   |
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| Coulsdon Chess Dicky White - April | London | ENG | 2023-04-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1324 | 1306 | 2.00 | 2 | 1.05 | 20 | 21.00 | |
|  Mahadevan, Meikum | | | 1294 | ENG | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Khare, Shubh | | | 1353 | ENG | 1.00 | 1 | 0.57 | 20 | 11.40 | |
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) | | | | Coulsdon Chess Standardplay Congress Easter 2023 - Major (U1750) | Coulsdon | ENG | 2023-04-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1377 | 1306 | 2.00 | 5 | -0.04 | 20 | -0.80 | |
| | Zhang, Yichen | | | 1431 | ENG | 1.00 | 1 | 0.67 | 20 | 13.40 | |  Warner, Dominic W J | | | 1519 | ENG | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Liu, Jacob | | | 1396 | ENG | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Ciutac, Stefan | | | 1325 | ENG | 0.00 | 1 | -0.47 | 20 | -9.40 | | | Fazia, Salvatore | | | 1212 | ENG | 1.00 | 1 | 0.37 | 20 | 7.40 | |
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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