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Individual Calculations February 2018 |
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| Wojciechowski, Piotr Total change: -22.60 | |   |
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| 27th Annual North American Open | Las Vegas, Nevada | USA | 2017-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2070 | 2235 | 4.50 | 8 | -1.13 | 20 | -22.60 | |
|  Kirumaki, Ronit | | | 2050 | USA | 0.00 | 1 | -0.74 | 20 | -14.80 | |  Adriaanse, Adam | | | 1996 | CAN | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Wu, Rochelle | | wc | 1894 | USA | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Easton, Jack | | | 2110 | USA | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Weeramantry, Sunil | f | | 2029 | SRI | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Sandager, Stephen | | | 2083 | USA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Shen, Shiyan | | | 2019 | CHN | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Kiewra, Keaton | m | | 2382 | USA | 0.00 | 1 | -0.30 | 20 | -6.00 | |
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) | | |
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