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Individual Calculations February 2015 |
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| Ramirez Madrid, Gerardo Alfonso Total change: 68.40 | |   |
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| Campeonato Nacional CRC Sub 14 Abierto 2015 | San Jose | CRC | 2015-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1574 | 1435 | 3.50 | 5 | 1.91 | 40 | 76.40 | |
|  Guzman Hidalgo, Nicolas | | | 1562 | CRC | 1.00 | 1 | 0.67 | 40 | 26.80 | |  Soto Alfaro, Braulio | | | 1509 | CRC | 1.00 | 1 | 0.60 | 40 | 24.00 | | | Castro Garcia, Alejandro | | | 1614 | CRC | 0.50 | 1 | 0.23 | 40 | 9.20 | | | Solano Saltachin, Carlos Andres | | | 1673 | CRC | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Bonilla Morales, Bryan | | | 1513 | CRC | 1.00 | 1 | 0.61 | 40 | 24.40 | |
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) | | | | Campeonato Nacional CRC Sub 20 Abierto 2015 | San Jose | CRC | 2015-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1721 | 1435 | 0.50 | 4 | -0.20 | 40 | -8.00 | |
| | Quesada Campos, Jordi Alessandre | | | 1835 * | CRC | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Blanco Rojas, Benjamin | | | 1791 | CRC | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Aragon Alvarado, Christopher | | | 1696 | CRC | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Guzman Hidalgo, Nicolas | | | 1562 | CRC | 0.50 | 1 | 0.17 | 40 | 6.80 | | | * 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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