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Individual Calculations April 2018 |
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| Ivanov, Aleksandr Total change: 7.80 | |   |
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| Winter 2018 Tuesday Night Marathon | San Francisco, California | USA | 2018-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1818 | 2136 | 3.50 | 5 | -0.78 | 20 | -15.60 | |
|  Robeal, Rafik | | | 1736 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Poling, Scott | | | 1772 | USA | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Maser, Thomas | | | 1917 | USA | 0.00 | 1 | -0.78 | 20 | -15.60 | | | Cortinas, Martin | | | 1736 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Argo, Guy | | | 1930 | USA | 0.50 | 1 | -0.26 | 20 | -5.20 | | | * 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 IM John Grefe Marathon | Berkeley, California | USA | 2018-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2004 | 2136 | 5.00 | 6 | 1.17 | 20 | 23.40 | |
| | Shrauger, Alex | | | 1736 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Jensen, Christian | | | 1793 | USA | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Winslow, Elliott | m | | 2243 | USA | 1.00 | 1 | 0.65 | 20 | 13.00 | | | Oconnor, Derek | | | 2181 | USA | 0.50 | 1 | 0.06 | 20 | 1.20 | | | Lewis, Edward | | | 1881 | USA | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Poehlmann, Roger | | | 2189 | USA | 0.50 | 1 | 0.07 | 20 | 1.40 | | | * 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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