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Individual Calculations July 2015 |
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| Sudan, Georges Total change: 7.40 | |   |
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| Coupe du Leman Cat. A Geneva | different places | SUI | 2015-05-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1900 | 1975 | 1.50 | 2 | 0.33 | 20 | 6.60 | |
|  Nawrocki, Bronislaw | | | 1704 | SUI | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Rochat, Georges | | | 2095 | SUI | 0.50 | 1 | 0.16 | 20 | 3.20 | |
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) | | | | 31. Open des Amateurs 2015 Round 3-5 | Geneva | SUI | 2015-05-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1792 | 1975 | 1.50 | 3 | -0.68 | 20 | -13.60 | |
| | Bouchelaghem, Arezki | | | 1739 | SUI | 1.00 | 1 | 0.20 | 20 | 4.00 | |  Vuillermoz, Herve | | | 1684 | FRA | 0.50 | 1 | -0.35 | 20 | -7.00 | | | Barbosa, Paulo | | | 1953 | POR | 0.00 | 1 | -0.53 | 20 | -10.60 | |
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) | | | | Swiss Team Championship 2015 (League A,B,1) Round 3-5 | decentralised | SUI | 2015-05-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1962 | 1975 | 1.00 | 1 | 0.48 | 20 | 9.60 | |
| | Roussey, Quentin | | | 1962 | FRA | 1.00 | 1 | 0.48 | 20 | 9.60 | |
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) | | | | 31. Open des Amateurs 2015 Rounds 6-7 | Geneva | SUI | 2015-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1878 | 1980 | 1.50 | 2 | 0.24 | 20 | 4.80 | |
| | Lopez, Manuel | | | 1964 | SUI | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Wehrli, Tobias | | | 1792 | SUI | 0.50 | 1 | -0.24 | 20 | -4.80 | |
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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