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Individual Calculations February 2013 |
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| Polyakov, Fedor Total change: 58.35 | |   |
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| Riga Chess federation championship-2013 I stage | Riga | LAT | 2013-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1940 | 1754 | 1.00 | 4 | -0.12 | 15 | -1.80 | |
|  Visockis, Janis | | | 2154 * | LAT | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Roze, Janis | | | 1924 | LAT | 0.50 | 1 | 0.22 | 15 | 3.30 | |  Stabulnieks, Klavs | | | 1850 | LAT | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Pomahs, Martins | | | 1831 | LAT | 0.50 | 1 | 0.11 | 15 | 1.65 | | | * 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) | | | | Latvian Championship- 2013 1/4 final | Riga | LAT | 2013-01-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1949 | 1754 | 6.00 | 8 | 4.01 | 15 | 60.15 | |
| | Melderis, Uldis | | | 1978 | LAT | 1.00 | 1 | 0.78 | 15 | 11.70 | | | Shumskis, Aleksandrs | | | 1889 | LAT | 1.00 | 1 | 0.68 | 15 | 10.20 | | | Nemkovs, Vjaceslavs | | | 1962 | LAT | 1.00 | 1 | 0.77 | 15 | 11.55 | | | Safonovs, Romans | | | 1983 | LAT | 0.50 | 1 | 0.29 | 15 | 4.35 | | | Otikova, Elina | | | 1926 | LAT | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Petrovskis, Olegs | | | 1973 | LAT | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Kazmins, Girts | | | 1941 | LAT | 1.00 | 1 | 0.74 | 15 | 11.10 | | | Lielmezs, Girts | | | 1938 | LAT | 1.00 | 1 | 0.74 | 15 | 11.10 | |
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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