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Individual Calculations April 2008 |
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| Arias Santana, Mauricio Total change: 18.00 | |   |
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| Internacional de Alajuela 2007 | Alajuela | CRC | 2007-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2204 | 2285 | 6.00 | 8 | 1.15 | 15 | 17.25 | |
|  Arroyo, Luis | | | 2021 | CRC | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Alvarado, Dizan | | | 2080 | CRC | 1.00 | 1 | 0.24 | 15 | 3.60 | |  Ugalde, Ronald | | | 2148 | CRC | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Perelshteyn, Eugene | g | | 2540 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Minero, Carlos | | | 2147 | CRC | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Valdes, Leonardo | m | | 2401 | CRC | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Betancourt, Pedro | | | 2140 | VEN | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Alfaro, William | | | 2151 | NCA | 1.00 | 1 | 0.32 | 15 | 4.80 | |
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) | | | | IV International Tournament Arnoldo Tenorio in Memoriam 2007 | Granada | NCA | 2007-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2157 | 2285 | 4.00 | 6 | 0.05 | 15 | 0.75 | |
| | Alvarez Fernandez, David | | | 1935 | CRC | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Castro, Randall | | | 2161 | CRC | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Ramos, Efren Andres | | | 2172 | NCA | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Ruiz Blais, Sebastian | | | 2121 | CRC | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Alfaro, William | | | 2151 | NCA | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Valdes, Leonardo | m | | 2401 | CRC | 0.00 | 1 | -0.34 | 15 | -5.10 | |
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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