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Individual Calculations July 2009 |
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| Thorhallsson, Gylfi Total change: -25.05 | |   |
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| Icelandic Team Champ div 1 | Akureyri | ISL | 2009-03-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2394 | 2219 | 0.50 | 3 | -0.35 | 15 | -5.25 | |
|  Oleksienko, Mikhailo | g | | 2550 | UKR | 0.00 | 1 | -0.12 | 15 | -1.80 | |  Karlsson, Agust S | f | | 2291 | ISL | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Bergsson, Snorri | f | | 2341 | ISL | 0.50 | 1 | 0.17 | 15 | 2.55 | |
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) | | | | Reykjavík Open | Reykjavík | ISL | 2009-03-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2182 | 2219 | 3.50 | 9 | -1.49 | 15 | -22.35 | |
| | Maze, Sebastien | g | | 2569 | FRA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Eliasson, Kristjan Orn | | | 1940 | ISL | 0.50 | 1 | -0.34 | 15 | -5.10 | | | Thorsteinsdottir, Hallgerdur | | | 1951 | ISL | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Roussel-Roozmon, Thomas | m | | 2479 | CAN | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Vigfusson, Vigfus | | | 2027 | ISL | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Bergsson, Stefan | | | 2079 | ISL | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Thorgeirsson, Sverrir | | | 2094 | ISL | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Thorfinnsson, Bjorn | f | | 2408 | ISL | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Gudmundsson, Stefan Freyr | | | 2092 | ISL | 0.00 | 1 | -0.67 | 15 | -10.05 | |
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 2009 | Akureyri | ISL | 2009-06-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2003 | 2232 | 2.50 | 3 | 0.17 | 15 | 2.55 | |
| | Karlsson, Mikael Johann | | | 1882 | ISL | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Valtysson, Thor | | | 2090 | ISL | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Sigurdarson, Tomas Veigar | | | 2036 | ISL | 1.00 | 1 | 0.25 | 15 | 3.75 | |
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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