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Individual Calculations December 2019 |
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| McDermott, Peter John Total change: 36.40 | |   |
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| The Jamaica International Open 2019 - FIDE Open Section | Kingston, Jamaica | JAM | 2019-10-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1878 | 1797 | 2.50 | 4 | 0.91 | 40 | 36.40 | |
|  Brown, Akeem | c | | 2042 | JAM | 0.50 | 1 | 0.30 | 40 | 12.00 | |  Byfield, Geoffrey | | | 2024 | JAM | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Lyn, Christopher | | | 1875 | JAM | 1.00 | 1 | 0.61 | 40 | 24.40 | | | Stephenson, John | | | 1570 | JAM | 1.00 | 1 | 0.21 | 40 | 8.40 | |
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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