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Blitz:
Individual Calculations September 2021 |
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| Petursson, Gudni Total change: 22.60 | |   |
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| Arbaejarsafnsmotid 2021 | Reykjavik | ISL | 2021-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2102 | 2063 | 5.00 | 7 | 2.17 | 20 | 43.40 | |
|  Omarsson, Josef | | | 1328 | ISL | 1.00 | 1 | 0.01 | 20 | 0.20 | |  Gretarsson, Helgi Ass | g | | 2462 | ISL | 1.00 | 1 | 0.92 | 20 | 18.40 | | | Johannesson, Ingvar Thor | f | | 2351 | ISL | 0.50 | 1 | 0.34 | 20 | 6.80 | | | Edvardsson, Kristjan | | | 2206 | ISL | 1.00 | 1 | 0.69 | 20 | 13.80 | | | Kjartansson, David | m | | 2372 | ISL | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Antonsson, Atli | | | 1817 | ISL | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Bjornsson, Tomas | f | | 2177 | ISL | 0.50 | 1 | 0.16 | 20 | 3.20 | |
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) | | | | Borgarskakmotid 2021 | Reykjavik | ISL | 2021-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1852 | 2063 | 4.00 | 7 | -1.04 | 20 | -20.80 | |
| | Audarson, Odinn Freyr | | | 1492 | ISL | 1.00 | 1 | 0.02 | 20 | 0.40 | | | Thorsteinsson, Aron Ellert | | | 1814 | ISL | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Gunnarsson, Arnar | m | | 2435 | ISL | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Kristinsson, Ogmundur | | | 1929 | ISL | 0.00 | 1 | -0.68 | 20 | -13.60 | | | Thorisson, Benedikt | | | 1644 | ISL | 1.00 | 1 | 0.07 | 20 | 1.40 | | | Ptacnikova, Lenka | | wg | 1967 | ISL | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Gudmundsson, Gunnar Erik | | | 1683 | ISL | 0.00 | 1 | -0.91 | 20 | -18.20 | |
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) | | |
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