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Individual Calculations September 2009 |
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| Principe, Gerson Total change: 10.80 | |   |
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| I IRT Club Magdalena 2009 | Lima | PER | 2009-06-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2028 | 1992 | 3.00 | 6 | 0.31 | 15 | 4.65 | |
|  Contreras, Jose | | | 2217 | PER | 1.00 | 1 | 0.78 | 15 | 11.70 | |  Harter, Jorge | | | 2128 | PER | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Garcia, Ana | | | 2005 | PER | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Suasnabar, Jesus | | | 2004 | PER | 0.50 | 1 | 0.02 | 15 | 0.30 | | | Estrada, Santiago | | | 2096 | PER | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Retamozo, Kevin | | | 1720 | PER | 0.00 | 1 | -0.83 | 15 | -12.45 | |
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) | | | | III IRT Rio de Janeiro U-2000 | Lima | PER | 2009-07-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1868 | 1992 | 6.00 | 9 | 0.12 | 15 | 1.80 | |
| | Talavera, Ana | | | 1592 * | PER | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Principe, Alexander | f | | 1919 | PER | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Sanchez Zambrano, Vanessa | | | 1755 | PER | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Yauri, Dario | | | 1921 | PER | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Navarro, Edmundo | | | 1987 | PER | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Laura, Americo | | | 1990 | PER | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Llacsahuanga, Diego | | | 1851 | PER | 0.00 | 1 | -0.69 | 15 | -10.35 | | | Flores, Alexander | | | 1927 | PER | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Moreno, Carlos | | | 1868 | PER | 0.00 | 1 | -0.67 | 15 | -10.05 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | XX Panamericano Mar del Plata U14 Abs | Mar del Plata | ARG | 2009-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1960 | 1992 | 3.00 | 5 | 0.29 | 15 | 4.35 | |
| | Gomez Garcia, Jose Santos | | | 1948 | MEX | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Principe, Alexander | f | | 1919 | PER | 0.00 | 1 | -0.60 | 15 | -9.00 | | | Nunez, Dante | | | 1894 | PER | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Rozo, Paulo | | | 1968 | BOL | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Henriquez Villagra, Cristobal | | | 2072 | CHI | 1.00 | 1 | 0.61 | 15 | 9.15 | |
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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