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Rapid:
Individual Calculations December 2017 |
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| Porras Chavarria, Pamela Maria Total change: 30.00 | |   |
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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 |
| 1540 | 1284 | 3.00 | 7 | 1.50 | 20 | 30.00 | |
|  Rivera Gonzalez, Jose Alexis | | | 1684 * | CRC | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Chaves Williams, Jose Andres | | | 1538 | CRC | 1.00 | 1 | 0.81 | 20 | 16.20 | | | Elizondo Montero, Juan Luis | | | 1248 | CRC | 1.00 | 1 | 0.45 | 20 | 9.00 | | | Calvo Gutierrez, Luis Guillermo | | | 1684 * | CRC | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Marin Leon, Valeria | | wc | 1684 * | CRC | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Nunez Okubo, Isao | c | | 1514 | CRC | 1.00 | 1 | 0.79 | 20 | 15.80 | | | Mendez Moreno, Kevin Alberto | | | 1429 | CRC | 0.00 | 1 | -0.31 | 20 | -6.20 | | | * 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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