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Individual Calculations October 2018 |
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| Walder, Michael Total change: -5.20 | |   |
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| 2018 Neil Falconer Marathon | Berkeley, California | USA | 2018-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1941 | 1912 | 3.00 | 5 | 0.75 | 20 | 15.00 | |
|  Donaldson, Kyle | | | 1512 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Oconnor, Derek | | | 2232 | USA | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Glasscoe, Alan | | | 1571 | USA | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Chambers, Ezra Paul | f | | 2233 | BDI | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Ivanov, Aleksandr | | | 2158 | USA | 1.00 | 1 | 0.81 | 20 | 16.20 | | | * 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) | | | | 2018 Berkeley Open | Berkeley, California | USA | 2018-09-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1929 | 1924 | 0.50 | 3 | -1.01 | 20 | -20.20 | |
| | Oconnor, Derek | | | 2232 | USA | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Krishnakumar, Sriram | c | | 1675 | USA | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Nayberg, Simona | | | 1880 | USA | 0.00 | 1 | -0.56 | 20 | -11.20 | |
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) | | |
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