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Individual Calculations March 2012 |
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| Vigorito, David Total change: 1.20 | |   |
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| 2012 Portsmouth Open | Portsmouth, New Hampshire | USA | 2012-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2265 | 2430 | 2.00 | 3 | -0.04 | 10 | -0.40 | |
|  Elmore, John P | | | 2030 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Ivanov, Alexander | g | | 2518 | USA | 0.50 | 1 | 0.12 | 10 | 1.20 | | | Martirosov, Vadim | | | 2247 | USA | 0.50 | 1 | -0.24 | 10 | -2.40 | | | * 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) | | | | Saco Open | Saco, Maine | USA | 2012-02-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2188 | 2430 | 2.50 | 3 | 0.16 | 10 | 1.60 | |
| | Carter, David E | | | 2100 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Sarkar, Justin | m | | 2370 | USA | 0.50 | 1 | -0.08 | 10 | -0.80 | | | Kleist, Frederick | | | 2095 | CAN | 1.00 | 1 | 0.12 | 10 | 1.20 | |
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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