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Individual Calculations September 2019 |
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| Montealto Lanzas, Sergio Total change: 6.80 | |   |
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| Campeonato Nacional Abierto 2019 | San Jose | CRC | 2019-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1702 | 1571 | 2.00 | 5 | 0.17 | 40 | 6.80 | |
|  Morera Campos, Hazel Maria | | wm | 1911 | CRC | 0.00 | 1 | -0.12 | 40 | -4.80 | |  Bustos Arias, Darien | | | 1400 | CRC | 0.50 | 1 | -0.23 | 40 | -9.20 | | | Alvarado Machado, Verny | | | 1969 | CRC | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Murillo Arguedas, Jaime | | | 1777 | CRC | 0.50 | 1 | 0.26 | 40 | 10.40 | | | Cardenas Vargas, Jean Carlo | | | 1453 | CRC | 0.50 | 1 | -0.16 | 40 | -6.40 | |
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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