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Blitz:
Individual Calculations September 2021 |
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| Sigurvaldason, Hjalmar Total change: 19.60 | |   |
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| Arbaejarsafnsmotid 2021 | Reykjavik | ISL | 2021-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1738 | 1402 | 0.00 | 3 | -0.77 | 20 | -15.40 | |
|  Johannesson, Ingvar Thor | f | | 2137 | ISL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Antonsson, Atli | | | 1817 | ISL | 0.00 | 1 | -0.07 | 20 | -1.40 | |  Jonasson, Hordur | | | 1259 | ISL | 0.00 | 1 | -0.69 | 20 | -13.80 | |
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 |
| 1509 | 1402 | 4.00 | 7 | 1.36 | 20 | 27.20 | |
| | Jonsson, Gauti Pall | | | 2018 | ISL | 0.00 | 1 | -0.02 | 20 | -0.40 | | | Thordarson, Sturla | | | 1649 | ISL | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Johannesson, Petur | | | 789 | ISL | 1.00 | 1 | 0.02 | 20 | 0.40 | | | Omarsson, Adam | | | 1570 | ISL | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Hafdisarson, Ingi Thor | | | 1464 | ISL | 1.00 | 1 | 0.59 | 20 | 11.80 | | | Helgadottir, Idunn | | | 1259 | ISL | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Thorsteinsson, Aron Ellert | | | 1814 | ISL | 1.00 | 1 | 0.93 | 20 | 18.60 | |
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 |
| 1536 | 1402 | 3.00 | 6 | 0.39 | 20 | 7.80 | |
| | Olafsson, Thorvardur | | | 2054 | ISL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Johannesson, Petur | | | 789 | ISL | 1.00 | 1 | 0.02 | 20 | 0.40 | | | Sigurdsson, Arnljotur | | | 1908 | ISL | 0.00 | 1 | -0.04 | 20 | -0.80 | | | Kristbergsson, Bjorgvin | | | 1068 | ISL | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Thorsson, Olafur | | | 2137 | ISL | 0.00 | 1 | -0.01 | 20 | -0.20 | | | Jonasson, Hordur | | | 1259 | ISL | 1.00 | 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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