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Individual Calculations July 2014 |
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| Vigorito, David Total change: 6.60 | |   |
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| 2014 Portsmouth Open | Portsmouth, New Hampshire | USA | 2014-06-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2161 | 2409 | 3.50 | 4 | 0.45 | 10 | 4.50 | |
|  Karlsson, Fridrik | | | 2009 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Carter, David E | | | 2111 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Ivanov, Alexander | g | | 2513 | USA | 0.50 | 1 | 0.14 | 10 | 1.40 | | | McDermott, Kerry | | | 2009 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | * 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) | | | | 2014 National Open - Open Section | Las Vegas, Nevada | USA | 2014-06-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2460 | 2409 | 2.00 | 4 | 0.21 | 10 | 2.10 | |
| | Quesada Perez, Yuniesky | g | | 2642 | CUB | 0.00 | 1 | -0.21 | 10 | -2.10 | | | Manvelyan, Hayk | | | 2251 | USA | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Bruzon Batista, Lazaro | g | | 2694 | CUB | 0.00 | 1 | -0.16 | 10 | -1.60 | | | Adamson, Robby | f | | 2251 | USA | 1.00 | 1 | 0.29 | 10 | 2.90 | |
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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