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Individual Calculations October 2017 |
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| Walder, Michael S Total change: -2.80 | |   |
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| Neil Falconer Marathon | Berkeley, California | USA | 2017-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1910 | 2023 | 2.50 | 4 | -0.03 | 20 | -0.60 | |
|  Paetz, Mark | | | 1701 | USA | 1.00 | 1 | 0.13 | 20 | 2.60 | |  Acosta, Anthony | | | 1785 | USA | 1.00 | 1 | 0.20 | 20 | 4.00 | | | O`connor, Derek | | | 2213 | USA | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Maser, Thomas F | | | 1941 | USA | 0.50 | 1 | -0.11 | 20 | -2.20 | |
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) | | | | 2017 CalChess State Championship - Expert Section | Santa Clara, California | USA | 2017-09-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1844 | 1987 | 4.00 | 6 | -0.11 | 20 | -2.20 | |
| | Ai, Evan Zihao | | | 1778 | USA | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Oza, Nikunj Chandrakant | | | 1770 | USA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Sartorio, William | | | 1794 | USA | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Saephanh, William | | | 1985 | USA | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Wang, Henry | | | 1774 | USA | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Wang, Yuan | | | 1961 | USA | 0.00 | 1 | -0.54 | 20 | -10.80 | |
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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