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Individual Calculations September 2021 |
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| Peterson, Brian Total change: -57.60 | |   |
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| 53rd Annual Atlantic Open - Major | Reston, Virginia | USA | 2021-08-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1928 | 1915 | 0.50 | 4 | -1.44 | 40 | -57.60 | |
|  Adewumi, Tanitoluwa | | | 1895 | USA | 0.00 | 1 | -0.53 | 40 | -21.20 | | | Moore, Johnson | | | 1968 | USA | 0.00 | 1 | -0.43 | 40 | -17.20 | |  Wu, Eric Sheng | | | 1857 | USA | 0.50 | 1 | -0.08 | 40 | -3.20 | | | Treger, Yefim | | | 1990 | USA | 0.00 | 1 | -0.40 | 40 | -16.00 | |
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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