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Individual Calculations September 2019 |
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| Bustos Arias, Darien Total change: 1.60 | |   |
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| Campeonato Nacional Abierto 2019 | San Jose | CRC | 2019-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1591 | 1400 | 1.50 | 5 | 0.04 | 40 | 1.60 | |
|  Alvarado Machado, Verny | | | 1800 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Montealto Lanzas, Sergio | | | 1571 | CRC | 0.50 | 1 | 0.23 | 40 | 9.20 | |  Rodriguez Sanchez, Mauricio | | | 1476 | CRC | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Guevara Cornejo, Gabriel | | | 1306 | CRC | 1.00 | 1 | 0.37 | 40 | 14.80 | | | Rivera Gonzalez, Jose Alexis | | | 1800 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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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