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Individual Calculations February 2015 |
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| Alpizar Gonzalez, Marlon Alberto Total change: 8.80 | |   |
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| Campeonato Nacional CRC Sub 20 Abierto 2015 | San Jose | CRC | 2015-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1736 | 1360 | 0.50 | 3 | 0.22 | 40 | 8.80 | |
|  Murillo Gonzalez, Carlos E | c | | 1760 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Porras Chavarria, Steve | | | 1689 | CRC | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Quesada Campos, Jordi Alessandre | | | 1760 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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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