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Individual Calculations January 2011 |
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| Duran Vega, Andres Total change: 9.30 | |   |
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| Copa Deposito El Lagar | San Jose | CRC | 2010-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2113 | 1993 | 2.00 | 4 | 0.64 | 15 | 9.60 | |
|  Carvajal Gorgona, Jonathan | | | 2186 | CRC | 0.00 | 1 | -0.25 | 15 | -3.75 | |  Solis, Efren | | | 2125 | CRC | 1.00 | 1 | 0.68 | 15 | 10.20 | | | Alfaro Guillen, Jose Raul | | | 1985 | CRC | 1.00 | 1 | 0.49 | 15 | 7.35 | | | Duran Vega, Sergio | | | 2157 | CRC | 0.00 | 1 | -0.28 | 15 | -4.20 | |
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) | | | | JAVH McGregor de Ajedrez ITT | Bogota | COL | 2010-12-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2004 | 1969 | 0.00 | 3 | -1.36 | 15 | -20.40 | |
| | Ospina Loaiza, Jhonny | | | 2002 | COL | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Souza Neves, Andrey M | | | 2097 | BRA | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Uribe Fajardo, Juan Felipe | | | 1912 | COL | 0.00 | 1 | -0.58 | 15 | -8.70 | |
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) | | | | Festival Centroamericano y del Caribe de la Juventud U-14 Boys | Medellin | COL | 2010-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1937 | 1969 | 3.50 | 4 | 1.34 | 15 | 20.10 | |
| | Corado, Rafael | | | 2023 | VEN | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Hernandez, Cristian Andres | | | 1979 | COL | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Acevedo, Julian Steven | | | 1781 | COL | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Velasco, Ricardo | | | 1964 | VEN | 0.50 | 1 | -0.01 | 15 | -0.15 | |
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) | | |
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