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Individual Calculations July 2023 |
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| Pratley, Ian Total change: 24.00 | |   |
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| Coulsdon Chess Summer Cup 2023 - U1750 Round 1 - June | Coulsdon | ENG | 2023-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1437 | 1399 | 3.00 | 4 | 1.20 | 20 | 24.00 | |
|  Engelbrecht, Herman | | | 1524 | MEX | 1.00 | 1 | 0.67 | 20 | 13.40 | |  Morris-Weston, Robin T | | | 1450 | ENG | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Allan, Brian N | | | 1408 | SCO | 0.50 | 1 | 0.01 | 20 | 0.20 | | | Bermudez, Venerando | | | 1366 | ENG | 1.00 | 1 | 0.45 | 20 | 9.00 | |
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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