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Individual Calculations April 2009 |
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| Perez, Mario Abel Total change: -22.80 | |   |
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| 59 Abierto de Villa Ballester | Villa Ballester, Buenos Aires | ARG | 2009-01-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2005 | 2119 | 2.00 | 5 | -1.23 | 15 | -18.45 | |
|  Ortega Morales, Javier | | | 1953 | ARG | 1.00 | 1 | 0.28 | 15 | 4.20 | |  Bronstein, Luis | m | | 2390 | ARG | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Molina, Pablo S. | | | 1989 | ARG | 0.00 | 1 | -0.68 | 15 | -10.20 | | | Benedetti, Antonella | | | 1855 | ARG | 0.00 | 1 | -0.82 | 15 | -12.30 | | | Saragossi, Guido | | | 1838 | ARG | 1.00 | 1 | 0.16 | 15 | 2.40 | |
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) | | | | Teresa Winter 2009 | Los Polvorines | ARG | 2009-02-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2012 | 2119 | 1.00 | 2 | -0.29 | 15 | -4.35 | |
| | Oviedo, Manuel | | | 2000 | ARG | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Sanduay, Nicolas | | | 2024 | ARG | 0.00 | 1 | -0.63 | 15 | -9.45 | |
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) | | |
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