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Individual Calculations January 2020 |
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| Gaffagan, Steven Total change: -9.80 | |   |
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| Berkeley Club Championship 2019 | Berkeley, California | USA | 2019-10-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1802 | 1983 | 3.00 | 5 | -0.39 | 20 | -7.80 | |
|  Joshi, Mayin | | | 1583 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Winslow, Elliott C | m | | 2101 | USA | 0.00 | 1 | -0.34 | 20 | -6.80 | |  Paetz, Mark | | | 1608 | USA | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Poehlmann, Roger M | | | 2133 | USA | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Soltani, Mohammad | | | 1583 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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) | | | | Fall 2019 Tuesday Night Marathon | San Francisco, California | USA | 2019-10-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1966 | 1983 | 3.00 | 6 | -0.10 | 20 | -2.00 | |
| | Marcus, Joel | | | 1771 | USA | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Melville, Cailen | | | 1758 | USA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Wong, Russell | | | 1897 | USA | 1.00 | 1 | 0.38 | 20 | 7.60 | | | Li, Eric | c | | 2163 | USA | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Tsodikova, Natalya | | wf | 2106 | USA | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Winslow, Elliott | m | | 2101 | USA | 0.00 | 1 | -0.34 | 20 | -6.80 | |
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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