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Rapid:
Individual Calculations September 2018 |
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| Abarca Matarrita, Juan P Total change: 7.80 | |   |
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| Campeonato Nacional Ajedrez Rapido por Equipos FCA 2018 | San Jose | CRC | 2018-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1569 | 1379 | 1.00 | 2 | 0.39 | 20 | 7.80 | |
|  Sandi Castro, Allan | | | 1359 | CRC | 1.00 | 1 | 0.47 | 20 | 9.40 | |  Vega Araya, Edwin | | | 1779 * | CRC | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * 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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