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Individual Calculations October 2017 |
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| Perkins, Joaquin K Total change: -86.80 | |   |
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| 2017 Southern California Open | San Diego, California | USA | 2017-09-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2008 | 2037 | 0.00 | 4 | -2.17 | 40 | -86.80 | |
|  Watson, John L | m | | 2247 | USA | 0.00 | 1 | -0.23 | 40 | -9.20 | |  Arutyunov, Nikolay | | | 1969 | USA | 0.00 | 1 | -0.59 | 40 | -23.60 | | | Subedi, Avinaya | | | 1861 | NEP | 0.00 | 1 | -0.73 | 40 | -29.20 | | | Miller, Steven Pau | | | 1953 | USA | 0.00 | 1 | -0.62 | 40 | -24.80 | |
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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