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Individual Calculations September 2009 |
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| Ferry, Roger Total change: -24.00 | |   |
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| Championnat International de Paris - A | Paris | FRA | 2009-07-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1963 | 2099 | 4.00 | 8 | -1.42 | 15 | -21.30 | |
|  Rachid, Danial | | | 1910 | FRA | 0.00 | 1 | -0.75 | 15 | -11.25 | |  Duvicq, Arnaud | | | 1917 | FRA | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Gauthier, Arnaud | | | 1957 | FRA | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Le Roux, Yann-Erle | | | 1956 | FRA | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Mayer, Philippe | | | 1958 | FRA | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Eid, Amine | | | 1828 | FRA | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Santamaria, Jorge | | | 2171 | GER | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Noizat, Pierre | | | 2003 | FRA | 0.50 | 1 | -0.13 | 15 | -1.95 | |
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) | | | | Championnat de France - Open A | Nimes | FRA | 2009-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 2099 | 6.50 | 11 | -0.18 | 15 | -2.70 | |
| | Donskoi, Karel | | | 2007 | FRA | 0.00 | 1 | -0.63 | 15 | -9.45 | | | Lesbros, Bernard | | | 2018 | FRA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Quere, Alexandre | | | 2038 | FRA | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Marquet, Mathieu | | | 2014 | FRA | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Giry, Jean-Marc | | | 2006 | FRA | 0.00 | 1 | -0.63 | 15 | -9.45 | | | Durandeau, Jean-Marie | | | 2008 | FRA | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Busson, Benoist | | | 2009 | FRA | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Carre, Sylvain | | | 2044 | FRA | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Gueriche, Guillaume | | | 2022 | FRA | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Lefevre, Margaux | | | 2003 | FRA | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Fageot, Julien | | | 2060 | FRA | 1.00 | 1 | 0.45 | 15 | 6.75 | |
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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