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Individual Calculations September 2021 |
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| Burnett, Ronald Wa Total change: -8.30 | |   |
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| 4th Annual John T. Irwin National Tournament of Senior State Champions | Cherry Hill, New Jersey | USA | 2021-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2119 | 2325 | 4.00 | 6 | -0.54 | 10 | -5.40 | |
|  Sciacca, Patrick | | | 2045 | USA | 1.00 | 1 | 0.16 | 10 | 1.60 | |  Mc Entee, Tim R | | | 2040 | USA | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Koganov, Mikhail | | | 2119 | USA | 0.50 | 1 | -0.26 | 10 | -2.60 | | | Winslow, Elliott | m | | 2152 | USA | 0.00 | 1 | -0.73 | 10 | -7.30 | | | Ferreiro, Roberto | f | | 2279 | CUB | 0.50 | 1 | -0.06 | 10 | -0.60 | | | Casden, Alan | | | 2077 | USA | 1.00 | 1 | 0.19 | 10 | 1.90 | |
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) | | | | Houston Summer Championship 2021 | Houston, Texas | USA | 2021-08-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2069 | 2325 | 2.00 | 3 | -0.29 | 10 | -2.90 | |
| | Gardezi, Arsal | | | 1925 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Walmer, Benjamin | | | 1925 * | USA | 0.50 | 1 | -0.42 | 10 | -4.20 | | | Chen, Ryo Wenyu | | | 2358 | USA | 0.50 | 1 | 0.05 | 10 | 0.50 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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