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Individual Calculations March 2011 |
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| Johannsson, Orn Leo Total change: 4.65 | |   |
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| Reykjavik Championship 2011 | Reykjavik | ISL | 2011-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1827 | 1854 | 2.50 | 7 | -1.30 | 15 | -19.50 | |
|  Fridjonsson, Julius | | | 2195 | ISL | 0.00 | 1 | -0.12 | 15 | -1.80 | |  Kjartansson, Dagur | | | 1522 | ISL | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Ptacnikova, Lenka | | wg | 2254 * | ISL | 0.50 | 1 | 0.42 | 15 | 6.30 | | | Valtysson, Thor | | | 2031 | ISL | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Sigurdarson, Emil | | | 1616 | ISL | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Ragnarsson, Dagur | | | 1616 | ISL | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Lee, Gudmundur Kristinn | | | 1554 | ISL | 0.00 | 1 | -0.85 | 15 | -12.75 | | | * 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) | | | | Sudurlandsmotid 2011 | Selfoss | ISL | 2011-02-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1835 | 1854 | 2.00 | 3 | 0.42 | 15 | 6.30 | |
| | Thorgeirsson, Sverrir | | | 2246 | ISL | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Sigurdsson, Birkir Karl | | | 1472 | ISL | 1.00 | 1 | 0.09 | 15 | 1.35 | | | Sverrisson, Nokkvi | | | 1787 | ISL | 1.00 | 1 | 0.41 | 15 | 6.15 | |
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) | | | | Nordic Youth Chess Championship B | Oslo | NOR | 2011-02-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2020 | 1854 | 3.00 | 6 | 1.19 | 15 | 17.85 | |
| | Seegert, Kristian | | | 2154 | DEN | 1.00 | 1 | 0.85 | 15 | 12.75 | | | Kyrkjebo, Erlend | | | 1966 | NOR | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Sverrisson, Nokkvi | | | 1787 | ISL | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Westerberg, Jonathan | | | 2227 | SWE | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Haubro, Martin | | | 2003 | DEN | 1.00 | 1 | 0.70 | 15 | 10.50 | | | Ronka, Erik | | | 1984 | FIN | 0.00 | 1 | -0.32 | 15 | -4.80 | |
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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