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Individual Calculations April 2019 |
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| Cohen, Lawrence Total change: 18.80 | |   |
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| Panamerican Veteran & Senior Championship 2018 | St. Croix | ISV | 2018-12-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1977 | 1821 | 4.00 | 9 | 0.94 | 20 | 18.80 | |
|  Piasetski, Leon | m | | 2221 * | CAN | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Thau, Peter | | | 1607 | USA | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Rodriguez Rivera, Pedro | m | | 2221 * | CUB | 0.50 | 1 | 0.42 | 20 | 8.40 | | | O Neill, Julie Anne | | | 1692 | USA | 0.50 | 1 | -0.17 | 20 | -3.40 | | | Molina, Jorge | f | | 1968 | BOL | 0.50 | 1 | 0.20 | 20 | 4.00 | | | Pitre, Hanniegn | | | 1919 | USA | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Brown, Clark | | | 1723 | USA | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Roselli Mailhe, Bernardo | m | | 2221 * | URU | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Pelikian, Jefferson | m | | 2221 * | BRA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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