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Rapid:
Individual Calculations December 2017 |
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| Semana Ramirez, Jerian Total change: 11.40 | |   |
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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 |
| 1301 | 1156 | 1.50 | 3 | 0.57 | 20 | 11.40 | |
|  Lobo Meneses, Natalia | | | 1343 | CRC | 0.50 | 1 | 0.24 | 20 | 4.80 | |  Frajman Kierszenson, Lior | | | 1307 | CRC | 1.00 | 1 | 0.70 | 20 | 14.00 | | | Segura Cordero, Ariel | | | 1254 | CRC | 0.00 | 1 | -0.37 | 20 | -7.40 | |
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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