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Individual Calculations February 2015 |
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| Petersons, Ojars Total change: 25.80 | |   |
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| Latvian chess championship 2015 1/4 finals | Riga | LAT | 2015-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1874 | 1734 | 3.00 | 5 | 1.40 | 20 | 28.00 | |
|  Blinovs, Artjoms | | | 1956 | LAT | 0.50 | 1 | 0.28 | 20 | 5.60 | |  Puntus, Vladimirs | | | 1918 | LAT | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Nemkovs, Vjaceslavs | | | 1975 | LAT | 0.50 | 1 | 0.30 | 20 | 6.00 | | | Migunovs, Andrejs | | | 1768 | LAT | 1.00 | 1 | 0.55 | 20 | 11.00 | | | Reznikovs, Aleksandrs | | | 1754 | LAT | 0.50 | 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) | | | | Riga Chess Federation 2015 Championship stage I | Riga | LAT | 2015-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1821 | 1734 | 1.50 | 4 | -0.11 | 20 | -2.20 | |
| | Karklins, Imants | | | 2134 * | LAT | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Beks, Edmunds | | | 1935 | LAT | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Migunovs, Andrejs | | | 1768 | LAT | 0.50 | 1 | 0.05 | 20 | 1.00 | | | Bartoss, Marjans | | | 1445 | LAT | 1.00 | 1 | 0.16 | 20 | 3.20 | | | * 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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