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Individual Calculations October 2008 |
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| Prieto, Ernesto Total change: 24.75 | |   |
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| IRT Torneo de Ajedrez Ciudad de Agua deDios | Agua de Dios CUN | COL | 2008-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2029 | 2188 | 0.50 | 1 | -0.21 | 15 | -3.15 | |
|  Soste, Victor | | | 2029 | COL | 0.50 | 1 | -0.21 | 15 | -3.15 | |
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 Torneo Internacional de Ajedrez Alajuela 2008 | Alajuela | CRC | 2008-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2250 | 2156 | 1.00 | 4 | -0.63 | 15 | -9.45 | |
| | Perez, Luis Manuel | m | | 2495 | CUB | 0.00 | 1 | -0.12 | 15 | -1.80 | |  Vera, Reynaldo | g | | 2493 | CUB | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Urbina Quiros, Edwin | | | 2065 | CRC | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Mencos, Claudia | | | 1947 | GUA | 1.00 | 1 | 0.23 | 15 | 3.45 | |
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) | | | | IRT Open Feria de las Flores | Medellin | COL | 2008-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2209 | 2156 | 5.50 | 8 | 2.06 | 15 | 30.90 | |
| | Calderon, Karen Lineth | | | 1948 | COL | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Alzate Londono, William De Jesus | | | 2244 | COL | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Castro, Natalia Patricia | | | 2007 | COL | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Sanchez Maya, Simon | | | 2221 | COL | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Munoz, Jhon Edison | | | 2190 | COL | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Mosquera, Miguel | m | | 2377 | COL | 1.00 | 1 | 0.78 | 15 | 11.70 | | | Arenas, David | m | | 2319 | COL | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Echavarria, Johann | f | | 2367 | COL | 0.00 | 1 | -0.23 | 15 | -3.45 | |
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) | | | | IRT GP Festival Folclorico del Pacifico | Buenaventura | COL | 2008-08-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2126 | 2156 | 1.50 | 2 | 0.43 | 15 | 6.45 | |
| | Cardona, Juan Camilo | | | 1988 | COL | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Ossa, Orlando | | | 2264 | COL | 1.00 | 1 | 0.65 | 15 | 9.75 | |
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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