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Individual Calculations September 2021 |
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| Levi, Ariel S Total change: -3.60 | |   |
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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 |
| 2153 | 2069 | 1.00 | 3 | -0.18 | 20 | -3.60 | |
|  Ginsburg, Mark | m | | 2315 | USA | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Matros, Alexander | m | | 2365 | KAZ | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Carr, Jay A | | | 1779 | USA | 1.00 | 1 | 0.16 | 20 | 3.20 | |
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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