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Blitz:
Individual Calculations September 2021 |
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| Jonasson, Hordur Total change: 13.20 | |   |
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| Arbaejarsafnsmotid 2021 | Reykjavik | ISL | 2021-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1712 | 1259 | 1.00 | 6 | 0.29 | 20 | 5.80 | |
|  Thorhallsson, Simon | | | 1994 | ISL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Thorisson, Benedikt | | | 1644 | ISL | 0.00 | 1 | -0.09 | 20 | -1.80 | |  Sigurvaldason, Hjalmar | | | 1402 | ISL | 1.00 | 1 | 0.69 | 20 | 13.80 | | | Antonsson, Atli | | | 1817 | ISL | 0.00 | 1 | -0.03 | 20 | -0.60 | | | Ptacnikova, Lenka | | wg | 1967 | ISL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Olafsson, Arni | | | 1447 | ISL | 0.00 | 1 | -0.26 | 20 | -5.20 | |
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 |
| 1450 | 1259 | 2.50 | 7 | -0.01 | 20 | -0.20 | |
| | Brynjarsson, Helgi | | | 1986 | ISL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Baldursson, Benedikt | | | 1714 | ISL | 0.50 | 1 | 0.44 | 20 | 8.80 | | | Gudnyjarson, Sigurdur Pall | | | 1200 | ISL | 0.00 | 1 | -0.58 | 20 | -11.60 | | | Hallmundarson, Birkir | | | 1575 | ISL | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Kristbergsson, Bjorgvin | | | 1068 | ISL | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Antonsson, Atli | | | 1817 | ISL | 0.00 | 1 | -0.03 | 20 | -0.60 | | | Johannesson, Petur | | | 789 | ISL | 1.00 | 1 | 0.05 | 20 | 1.00 | |
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) | | | | Crazy Culture skakmot Vinaskakfelagsins 2021 | Reykjavik | ISL | 2021-08-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1483 | 1259 | 2.50 | 6 | 0.38 | 20 | 7.60 | |
| | Jonsson, Gauti Pall | | | 1994 | ISL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Kristbergsson, Bjorgvin | | | 1068 | ISL | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Thordarson, Sturla | | | 1649 | ISL | 0.50 | 1 | 0.41 | 20 | 8.20 | | | Olafsson, Thorvardur | | | 1994 | ISL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Johannesson, Petur | | | 789 | ISL | 1.00 | 1 | 0.05 | 20 | 1.00 | | | Sigurvaldason, Hjalmar | | | 1402 | ISL | 0.00 | 1 | -0.31 | 20 | -6.20 | |
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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