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Individual Calculations July 2009 |
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| Gudmundsson, Stefan Freyr Total change: 21.60 | |   |
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| Icelandic Team Champ div 2 | Akureyri | ISL | 2009-03-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2124 | 2092 | 2.50 | 3 | 1.12 | 15 | 16.80 | |
|  Halldorsson, Hjorleifur | | | 2017 | ISL | 1.00 | 1 | 0.40 | 15 | 6.00 | |  Jonatansson, Helgi E | | | 2067 | ISL | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Thorsteinsson, Thorsteinn | f | | 2288 | ISL | 0.50 | 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) | | | | Reykjavík Open | Reykjavík | ISL | 2009-03-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2054 | 2092 | 4.50 | 9 | -0.41 | 15 | -6.15 | |
| | Grandelius, Nils | m | | 2442 | SWE | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Andrason, Pall | | | 1742 | ISL | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Lagerman, Robert | f | | 2368 | ISL | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Eiriksson, Vikingur Fjalar | | | 1882 | ISL | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Gudmundsdottir, Geirthrudur Ann | | | 1763 | ISL | 0.50 | 1 | -0.38 | 15 | -5.70 | | | Johannesson, Ingvar Thor | f | | 2345 | ISL | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Benediktsson, Frimann | | | 1938 | ISL | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Fridgeirsson, Dagur Andri | | | 1788 | ISL | 1.00 | 1 | 0.14 | 15 | 2.10 | | | Thorhallsson, Gylfi | | | 2219 | ISL | 1.00 | 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) | | | | Haukar Inv 2009 pre 1 | Reykjavik | ISL | 2009-04-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1882 | 2092 | 4.00 | 5 | 0.27 | 15 | 4.05 | |
| | Schioth, Tjorvi | | | 1771 | ISL | 1.00 | 1 | 0.13 | 15 | 1.95 | | | Steingrimsson, Gustaf | | | 1742 | ISL | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Hardarson, Marteinn Thor | | | 1850 | ISL | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Bjornsson, Sverrir Orn | | | 2154 | ISL | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Sigurdsson, Pall | | | 1894 | ISL | 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) | | | | Haukar Inv 2009 Final A | Reykjavik | ISL | 2009-04-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2151 | 2092 | 3.00 | 6 | 0.46 | 15 | 6.90 | |
| | Ottesen, Oddgeir | | | 1874 | ISL | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Ptacnikova, Lenka | | wg | 2243 | ISL | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Olafsson, Thorvardur | | | 2212 | ISL | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Rodriguez Fonseca, Jorge | | | 2051 | ESP | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Gretarsson, Hjorvar Steinn | | | 2287 | ISL | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Hreinsson, Hlidar | | | 2236 | ISL | 0.50 | 1 | 0.19 | 15 | 2.85 | |
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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