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Individual Calculations April 2009 |
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| Helfferich, Erik Total change: -44.00 | |   |
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| IDF 1 - R3 | IDF | FRA | 2008-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1835 | 1874 | 1.00 | 1 | 0.45 | 25 | 11.25 | |
|  Maurice, Olivier | | | 1835 | FRA | 1.00 | 1 | 0.45 | 25 | 11.25 | |
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) | | | | IDF1 - R4-5 | IDF | FRA | 2009-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1853 | 1874 | 1.00 | 1 | 0.47 | 25 | 11.75 | |
| | Laine, Fabien | | | 1853 | FRA | 1.00 | 1 | 0.47 | 25 | 11.75 | |
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) | | | | Criteriums - R2-3 | IDF | FRA | 2009-01-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1882 | 1874 | 0.50 | 2 | -0.48 | 25 | -12.00 | |
|  Zaky, Tamir | | | 1883 | FRA | 0.00 | 1 | -0.49 | 25 | -12.25 | | | Tornare, Michel | | | 1880 | FRA | 0.50 | 1 | 0.01 | 25 | 0.25 | |
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) | | | | 25e open international de Cappelle | Cappelle la Grande | FRA | 2009-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1773 | 1874 | 1.00 | 5 | -2.20 | 25 | -55.00 | |
| | Leray, Jean-Claude | | | 1679 | FRA | 0.00 | 1 | -0.75 | 25 | -18.75 | | | Bonnal, Louis | | | 1691 | FRA | 0.00 | 1 | -0.74 | 25 | -18.50 | | | Garlopeau, Brigitte | | | 1643 | FRA | 0.00 | 1 | -0.79 | 25 | -19.75 | | | Petkevich, Jusefs | g | | 2224 | LAT | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Ilpide, Jean-Luc | | | 1627 | FRA | 1.00 | 1 | 0.19 | 25 | 4.75 | |
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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