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Individual Calculations February 2018 |
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| Prestia, Frank Total change: 49.60 | |   |
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| 2018 Portsmouth Open | Portsmouth, New Hampshire | USA | 2018-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1996 | 1727 | 2.00 | 3 | 1.40 | 40 | 56.00 | |
|  Jin, Derek | | | 1807 | USA | 1.00 | 1 | 0.61 | 40 | 24.40 | |  Sage, J Timothy | | | 2053 | USA | 1.00 | 1 | 0.87 | 40 | 34.80 | | | Ivanov, Alexander | g | | 2127 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | | | WN 2018 Winter 2-day Open | West Newbury, Massachusetts | USA | 2018-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2127 | 1727 | 0.00 | 2 | -0.16 | 40 | -6.40 | |
| | Vigorito, David | m | | 2127 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Yanayt, Eugene | f | | 2127 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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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