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Individual Calculations January 2011 |
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| Petrovskis, Olegs Total change: 9.75 | |   |
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| World Youth Chess Championships 2010 - Open under 12 | Porto Carras, Chalkidiki - Greece | GRE | 2010-10-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1745 | 1851 | 3.50 | 5 | 0.33 | 25 | 8.25 | |
|  Modi, Sachin | | | 1571 | RSA | 1.00 | 1 | 0.16 | 25 | 4.00 | | | Bakirtzis, Triantafilos | | | 1659 | GRE | 1.00 | 1 | 0.25 | 25 | 6.25 | | | Suarez Gomez, Julio | | | 1675 | ESP | 0.00 | 1 | -0.73 | 25 | -18.25 | | | Pavcevic, Bruno | | | 1796 | CRO | 1.00 | 1 | 0.42 | 25 | 10.50 | |  Popov, Andrey | | | 2024 | RUS | 0.50 | 1 | 0.23 | 25 | 5.75 | |
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) | | | NOTE: K factor changed | | Termo EKO Cup - 2010 | RIGA | LAT | 2010-11-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1921 | 1852 | 1.00 | 2 | 0.10 | 15 | 1.50 | |
| | Berzinsh, Roland | m | | 2252 * | LAT | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Beks, Edmunds | | | 1589 | LAT | 1.00 | 1 | 0.18 | 15 | 2.70 | | | * 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) | | |
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