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Rapid:
Individual Calculations December 2017 |
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| Marin Leon, Valeria Total change: -7.20 | |   |
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| I Torneo Abierto Unidos por el Ajedrez | Alajuela | CRC | 2017-11-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1649 | 1718 | 3.00 | 6 | -0.36 | 20 | -7.20 | |
|  Alfaro Guillen, Jose Raul | | | 2048 | CRC | 0.00 | 1 | -0.12 | 20 | -2.40 | |  Sandi Castro, Allan | | | 1341 | CRC | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Murillo Tsijli, Manuel | | | 2004 | CRC | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Porras Chavarria, Pamela Maria | | | 1318 * | CRC | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Rivera Gonzalez, Jose Alexis | | | 1822 | CRC | 0.00 | 1 | -0.36 | 20 | -7.20 | | | Arguedas Bolanos, Sharline | | | 1363 | CRC | 1.00 | 1 | 0.11 | 20 | 2.20 | | | * 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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