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Individual Calculations July 2009 |
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| Prieto, Ernesto Total change: -38.25 | |   |
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| XL Abierto de Mar del Plata | Mar del Plata, Buenos Aires | ARG | 2009-04-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1948 | 2142 | 2.50 | 5 | -1.14 | 15 | -17.10 | |
|  Novoa, Fernando | | | 1806 | ARG | 0.50 | 1 | -0.38 | 15 | -5.70 | |  Mazzochi, Facundo | | | 1829 | ARG | 1.00 | 1 | 0.14 | 15 | 2.10 | | | Rivas, Lucas Matias | | | 1967 | ARG | 0.00 | 1 | -0.73 | 15 | -10.95 | | | Navarro, Karina | | | 1889 | ARG | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Zamorano, Jorge | | | 2247 | ARG | 0.00 | 1 | -0.36 | 15 | -5.40 | |
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) | | | | IRT 2da Eliminatoria Inmemorian Guillermo Prada ABS | Bogota | COL | 2009-04-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2064 | 2142 | 1.00 | 4 | -1.41 | 15 | -21.15 | |
| | Rojas Barrero, Andres H | | | 2268 | COL | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Lopez Idarraga, Daniel Eduard | | | 1958 | COL | 0.50 | 1 | -0.24 | 15 | -3.60 | | | Ojeda, Jesus David | | | 2037 | COL | 0.00 | 1 | -0.64 | 15 | -9.60 | | | Guerrero, Hernando | | | 1993 | COL | 0.50 | 1 | -0.20 | 15 | -3.00 | |
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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