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Individual Calculations March 2010 |
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| Costa, Jean-Yves Total change: 13.50 | |   |
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| Coupe du Gard - 1 | Nimes | FRA | 2009-11-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1867 | 1888 | 1.00 | 2 | -0.05 | 15 | -0.75 | |
|  Bassier, Jerome | | | 2050 | FRA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Khelif, Jihane | | | 1683 | FRA | 0.50 | 1 | -0.26 | 15 | -3.90 | |
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) | | | | 4e Open FIDE de La Diagonale du Sud Montpellier | Montpellier | FRA | 2009-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 1888 | 3.50 | 7 | 1.01 | 15 | 15.15 | |
| | Alcaraz Ortega, Javier | | | 2241 | ESP | 1.00 | 1 | 0.89 | 15 | 13.35 | |  Pascal, Pierre | | | 2178 | FRA | 0.50 | 1 | 0.34 | 15 | 5.10 | | | Macon, Arthur | | | 1888 | FRA | 0.00 | 1 | -0.50 | 15 | -7.50 | | | Ringuet, Noe | | | 1904 | FRA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Bergez, Luc | m | | 2288 * | FRA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Youssoupov, Moisse | | | 1958 | FRA | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Testard, Michel | | | 1690 | FRA | 1.00 | 1 | 0.24 | 15 | 3.60 | | | * 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) | | | | 29e Open international de Clermont-Ferrand | Clermont-Ferrand | FRA | 2010-02-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1849 | 1860 | 2.00 | 4 | -0.06 | 15 | -0.90 | |
| | Thet, Sylvain | | | 1987 | FRA | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Labrosse, Pierre-Henri | | | 1704 | FRA | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Leguillon, David | | | 1942 | FRA | 0.00 | 1 | -0.39 | 15 | -5.85 | | | De Biasi, Robert | | | 1764 | FRA | 1.00 | 1 | 0.37 | 15 | 5.55 | |
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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