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Individual Calculations February 2023 |
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| Perruquon, Laetitia Total change: -21.40 | |   |
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| 19e Bois-Colombes Chess Master - Open C | BOIS COLOMBES | FRA | 2022-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1269 | 1349 | 4.00 | 7 | -0.19 | 20 | -3.80 | |
|  Zhang, Charly | | | 1137 | FRA | 0.50 | 1 | -0.27 | 20 | -5.40 | |  Berelowitch, Leon | | | 1042 | FRA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Aidan, David | | | 1253 | FRA | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Nait-Makhlouf, Ali | | | 1444 | FRA | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Amalot, Quentin | | | 1212 | FRA | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Brumant, Jean-Claude | | | 1543 | FRA | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Slimane, Adam | | | 1255 | FRA | 0.00 | 1 | -0.63 | 20 | -12.60 | |
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) | | | | Team 2023 - IDF Janvier | FRANCE | FRA | 2023-01-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1507 | 1355 | 0.00 | 2 | -0.60 | 20 | -12.00 | |
| | Delacourt, Frederic | | | 1529 | FRA | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Beley, Francis | | | 1484 | FRA | 0.00 | 1 | -0.33 | 20 | -6.60 | |
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) | | | | Team 2023 - Nationale 4 r4 | FRANCE | FRA | 2023-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1547 | 1355 | 0.00 | 1 | -0.25 | 20 | -5.00 | |
| | Eddif, Foued | | | 1547 | FRA | 0.00 | 1 | -0.25 | 20 | -5.00 | |
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) | | | | Team 2023 - Nationale 4 r5 | FRANCE | FRA | 2023-01-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1881 | 1355 | 0.00 | 1 | -0.03 | 20 | -0.60 | |
| | Le Roux, Yann-Erle | | | 1881 | FRA | 0.00 | 1 | -0.03 | 20 | -0.60 | |
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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