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Individual Calculations June 2015 |
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| Sartorio, William Total change: 31.20 | |   |
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| 40th CalChess State Scholastics Championship 2015 | Santa Clara, California | USA | 2015-05-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1792 | 1690 | 1.00 | 2 | 0.26 | 40 | 10.40 | |
|  Vichik, Adam | | | 1683 | USA | 1.00 | 1 | 0.49 | 40 | 19.60 | |  Handigol, Abhishek | | | 1901 | USA | 0.00 | 1 | -0.23 | 40 | -9.20 | |
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) | | | | 2015 Best of the West Class Championship | Santa Clara, California | USA | 2015-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1982 | 1690 | 1.00 | 3 | 0.52 | 40 | 20.80 | |
| | Biyiasas, Theodore | | | 1916 | USA | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Weideman, Thomas E | | | 2090 * | USA | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Blessing, Anthony | | | 1939 | USA | 0.00 | 1 | -0.19 | 40 | -7.60 | | | * 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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