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Individual Calculations November 2009 |
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| Koitka, Jakub Total change: -28.05 | |   |
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| Grand Prix "Na Chrobrego 28" | Gorzow Wlkp. | POL | 2009-09-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1935 | 1746 | 0.50 | 3 | -0.42 | 15 | -6.30 | |
|  Rutkowski, Maciej | m | | 2146 * | POL | 0.00 | 1 | -0.08 | 15 | -1.20 | |  Gromala, Radoslaw | | | 1581 | POL | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Siwiec, Arkadiusz | | | 2078 | POL | 0.00 | 1 | -0.12 | 15 | -1.80 | | | * 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) | | | | Baltic Sea Chess Stars | Narva | EST | 2009-10-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1890 | 1746 | 0.50 | 3 | -0.43 | 15 | -6.45 | |
| | Ladva, Ottomar | | | 1902 | EST | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Stremavicius, Titas | | | 1822 | LTU | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Emdin, Mark | | | 1946 | RUS | 0.50 | 1 | 0.26 | 15 | 3.90 | |
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) | | | | Mistrzostwa Miedzywojewodzkie DS+LB - grupa C13 | Lewin Klodzki | POL | 2009-10-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1683 | 1746 | 2.50 | 6 | -1.02 | 15 | -15.30 | |
| | Swiderski, Radoslaw | | | 1638 | POL | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Terochin, Piotr | | | 1736 | POL | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Bernaszuk, Krzysztof | | | 1709 | POL | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Gromala, Radoslaw | | | 1581 | POL | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Nun, Grzegorz | | | 1720 | POL | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Oszczanowski, Witold | | | 1712 | POL | 0.00 | 1 | -0.55 | 15 | -8.25 | |
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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