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Rapid:
Individual Calculations December 2017 |
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| Segura Cordero, Ariel Total change: -1.80 | |   |
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| I Torneo Unidos por el Ajedrez Sub14 2017 | Alajuela | CRC | 2017-11-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1318 | 1254 | 2.00 | 5 | -0.09 | 20 | -1.80 | |
|  Leon Cubero, Brandon | | | 1367 | CRC | 1.00 | 1 | 0.65 | 20 | 13.00 | |  Diaz Charpentier, Kristel Meliss | | | 1476 | CRC | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Espitia Torres, Mateo | | | 1377 | CRC | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Semana Ramirez, Jerian | | | 1156 | CRC | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Orozco Centeno, Mariana | | | 1212 | CRC | 0.00 | 1 | -0.56 | 20 | -11.20 | |
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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