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Individual Calculations October 2018 |
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| Costin, Petrica Total change: 13.00 | |   |
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| Tasnad Open 2018 | Tasnad | ROU | 2018-09-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2145 | 2145 | 0.50 | 2 | -0.50 | 20 | -10.00 | |
|  Aczel, Gergely | g | | 2545 * | HUN | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Cornea, Alexandru | | | 1745 * | ROU | 0.50 | 1 | -0.42 | 20 | -8.40 | | | * 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) | | | | Petra Weekend no.20 | Satu Mare | ROU | 2018-09-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2272 | 2145 | 3.50 | 7 | 1.15 | 20 | 23.00 | |
| | Bogdan, Dan | m | | 2366 | ROU | 0.50 | 1 | 0.28 | 20 | 5.60 | | | Balla, Tamas-Kristof | m | | 2328 | ROU | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Ceres, Dragos | | | 2258 | MDA | 0.00 | 1 | -0.35 | 20 | -7.00 | | | Meszaros, Andras | m | | 2236 | HUN | 1.00 | 1 | 0.62 | 20 | 12.40 | | | Baratosi, Daniel | m | | 2375 | ROU | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Dostan, Janos | f | | 2032 | HUN | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Itkis, Boris | m | | 2311 | ROU | 0.50 | 1 | 0.22 | 20 | 4.40 | |
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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