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Individual Calculations June 2017 |
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| Walder, Michael S Total change: 1.80 | |   |
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| Spring 2017 Tuesday Night Marathon | San Francisco, California | USA | 2017-03-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1929 | 1998 | 4.50 | 7 | 0.43 | 20 | 8.60 | |
|  Chan, John | | | 1635 | USA | 1.00 | 1 | 0.10 | 20 | 2.00 | |  Warton, Philip | | | 1831 | USA | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Winslow, Elliott C | m | | 2234 | USA | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Ochoa, Jason | | | 1850 | USA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Clemens, Kristian | | | 1847 | USA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Tsodikova, Natalia | | | 2146 | USA | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Vickers, Keith | | | 1959 | USA | 0.50 | 1 | -0.05 | 20 | -1.00 | |
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) | | | | Berkeley Weekender | Berkeley, California | USA | 2017-05-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2070 | 1999 | 3.00 | 4 | 1.37 | 20 | 27.40 | |
| | Eren, Baran | | | 2134 | TUR | 1.00 | 1 | 0.68 | 20 | 13.60 | | | Sevall, Jacob | | | 1952 | GER | 1.00 | 1 | 0.43 | 20 | 8.60 | | | O`connor, Derek | | | 2175 | USA | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Kane, Kevin | | | 2019 | USA | 1.00 | 1 | 0.53 | 20 | 10.60 | |
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) | | | | Best of the West Class Championship | Santa Clara, Callifornia | USA | 2017-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1781 | 1999 | 2.00 | 5 | -1.71 | 20 | -34.20 | |
| | Ai, Evan Zihao | | | 1688 | USA | 0.00 | 1 | -0.86 | 20 | -17.20 | | | Sartorio, William | | | 1758 | USA | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Krishnakumar, Sriram | c | | 1599 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | O`connor, Derek | | | 2175 | USA | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Dobrynin, Dmitri V | | | 1685 | USA | 0.00 | 1 | -0.86 | 20 | -17.20 | | | * 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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