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Individual Calculations April 2015 |
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| Sigurdsson, Jakob Saevar Total change: -11.60 | |   |
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| Skagafjordur Championship 2015 | Saudarkrokur | ISL | 2015-02-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1870 | 1808 | 0.00 | 1 | -0.41 | 20 | -8.20 | |
|  Arnljotsson, Jon | | | 1870 | ISL | 0.00 | 1 | -0.41 | 20 | -8.20 | |
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) | | | | Huginn Chess Championship 2015 (North zone) - round 4-7 | Husavik | ISL | 2015-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1701 | 1808 | 1.50 | 3 | -0.31 | 20 | -6.20 | |
|  Isleifsson, Runar | | | 1805 | ISL | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Halldorsson, Hjorleifur | | | 1890 | ISL | 0.50 | 1 | 0.11 | 20 | 2.20 | | | Vidarsson, Hlynur Snaer | | | 1408 * | ISL | 0.50 | 1 | -0.42 | 20 | -8.40 | | | * 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) | | | | Icelandic Team Championship 2014-15 3rd division Round 5-7 | Reykjavik | ISL | 2015-03-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1834 | 1798 | 1.50 | 3 | 0.14 | 20 | 2.80 | |
| | Hauksson, Hordur Aron | | | 1853 | ISL | 0.00 | 1 | -0.42 | 20 | -8.40 | | | Jonsson, Vidar | | | 1957 | ISL | 1.00 | 1 | 0.71 | 20 | 14.20 | | | Matthiasson, Magnus | | | 1691 | ISL | 0.50 | 1 | -0.15 | 20 | -3.00 | |
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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