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Individual Calculations May 2023 |
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| Pratley, Ian Total change: -30.80 | |   |
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| Coulsdon Chess Dicky White - April | London | ENG | 2023-04-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1535 | 1430 | 1.00 | 2 | 0.29 | 20 | 5.80 | |
|  Kilambi, Venkata Ananth Akshay | | | 1525 | ENG | 0.00 | 1 | -0.37 | 20 | -7.40 | |  Kumar, Arnav | | | 1544 | ENG | 1.00 | 1 | 0.66 | 20 | 13.20 | |
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 |
| 1346 | 1430 | 0.00 | 3 | -1.83 | 20 | -36.60 | |
| | Zhang, Yichen | | | 1431 | ENG | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Fazia, Salvatore | | | 1212 | ENG | 0.00 | 1 | -0.78 | 20 | -15.60 | | | Bermudez, Venerando | | | 1394 | ENG | 0.00 | 1 | -0.55 | 20 | -11.00 | |
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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