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Individual Calculations February 2015 |
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| Porras Chavarria, Steve Total change: -20.40 | |   |
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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 |
| 1632 | 1689 | 3.50 | 7 | -0.51 | 40 | -20.40 | |
|  Torres Romero, Cristhian | | | 1452 | CRC | 0.50 | 1 | -0.30 | 40 | -12.00 | |  Ramirez Arroyo, Joan Emmanuel | | | 2008 | CRC | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Alpizar Gonzalez, Marlon Alberto | | | 1360 | CRC | 0.50 | 1 | -0.38 | 40 | -15.20 | | | Alvarado Castro, Francisco | | | 1585 | CRC | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Castro Garcia, Alejandro | | | 1614 | CRC | 0.50 | 1 | -0.10 | 40 | -4.00 | | | Arce Mendez, Elias | | | 1715 | CRC | 0.00 | 1 | -0.46 | 40 | -18.40 | | | Bonilla Morales, Kevin | | | 1687 | CRC | 1.00 | 1 | 0.50 | 40 | 20.00 | |
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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