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Individual Calculations August 2021 |
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| Campbell, David Total change: 10.80 | |   |
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| Marshall FIDE Monday June-July 2021 | New York, NY | USA | 2021-06-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2032 | 1895 | 2.00 | 3 | 0.97 | 20 | 19.40 | |
|  Fikiet, Alexander | | | 2249 | USA | 0.00 | 1 | -0.11 | 20 | -2.20 | |  Levin, Anthony | | | 1943 | USA | 1.00 | 1 | 0.57 | 20 | 11.40 | | | Olsen, Robert Donald | | | 1905 | USA | 1.00 | 1 | 0.51 | 20 | 10.20 | |
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) | | | | 49th Annual World Open - Under 2200 | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1903 | 1902 | 3.00 | 7 | -0.43 | 20 | -8.60 | |
| | Deatrick, Alexander | | | 1958 | USA | 0.50 | 1 | 0.08 | 20 | 1.60 | | | Brady, Tyson | | | 1887 | USA | 0.00 | 1 | -0.52 | 20 | -10.40 | | | Talwalkar, Vedant Ameya | | | 1592 | USA | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Airapetian, Chouchanik | | wf | 1964 | USA | 1.00 | 1 | 0.59 | 20 | 11.80 | | | Gutnik, Aleksandr | | | 2070 | USA | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Bader, Jeremy | | | 1825 | USA | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Ling, Evan Maxwell | | | 2025 | USA | 0.00 | 1 | -0.33 | 20 | -6.60 | |
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) | | |
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