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Individual Calculations May 2011 |
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| Sigurdsson, Birkir Karl Total change: 54.00 | |   |
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| Reykjavik Open 2011 | Reykjavik | ISL | 2011-03-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1827 | 1481 | 3.00 | 9 | 1.91 | 15 | 28.65 | |
|  Omarsson, Dadi | | | 1881 * | ISL | 0.00 | 1 | -0.08 | 15 | -1.20 | |  Thorsteinsdottir, Hallgerdur | | | 1881 * | ISL | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Antonsson, Atli | | | 1830 | ISL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Calder, Dennis | | | 1881 * | GER | 0.50 | 1 | 0.42 | 15 | 6.30 | | | Andrason, Pall | | | 1683 | ISL | 0.50 | 1 | 0.26 | 15 | 3.90 | | | Leosson, Atli Johann | | | 1685 | ISL | 1.00 | 1 | 0.76 | 15 | 11.40 | | | Jonsson, Olafur Gisli | | | 1842 | ISL | 0.50 | 1 | 0.40 | 15 | 6.00 | | | Brynjarsson, Helgi | | | 1881 * | ISL | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Plug, Arjan | | | 1881 * | NED | 0.50 | 1 | 0.42 | 15 | 6.30 | | | * 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) | | | | Skakthing Nordlendinga 2011 | Siglufjordur | ISL | 2011-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1841 | 1481 | 0.50 | 2 | 0.29 | 15 | 4.35 | |
| | Sigurdarson, Tomas Veigar | | | 1881 * | ISL | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Sigurdsson, Jakob Saevar | | | 1801 | ISL | 0.50 | 1 | 0.37 | 15 | 5.55 | | | * 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 Championship 2011 Candidates | Reykjavik | ISL | 2011-04-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1737 | 1481 | 2.50 | 5 | 1.40 | 15 | 21.00 | |
| | Thorhallsson, Gylfi | | | 1881 * | ISL | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Leosson, Atli Johann | | | 1685 | ISL | 0.50 | 1 | 0.26 | 15 | 3.90 | | | Fridthjofsdottir, Sigurl Regina | | | 1808 | ISL | 0.50 | 1 | 0.37 | 15 | 5.55 | | | Ulfljotsson, Jon | | | 1872 | ISL | 0.50 | 1 | 0.41 | 15 | 6.15 | | | Johannesson, Kristofer Joel | | | 1437 | ISL | 1.00 | 1 | 0.44 | 15 | 6.60 | | | * 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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