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Individual Calculations September 2013 |
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| Mazur, Stefan Total change: -11.10 | |   |
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| 12th Annual Manhattan Open | New York, New York | USA | 2013-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2326 | 2424 | 1.50 | 4 | -0.96 | 10 | -9.60 | |
|  Gandhi, Ashok | | | 2088 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Fishbein, Alexander | g | | 2522 | USA | 0.00 | 1 | -0.37 | 10 | -3.70 | |  Munoz, Lisandro | m | | 2427 | DOM | 0.00 | 1 | -0.50 | 10 | -5.00 | | | De Arco, Luis Carlos | f | | 2268 | COL | 0.50 | 1 | -0.21 | 10 | -2.10 | |
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) | | | | 45th Annual Atlantic Open | Washington DC | USA | 2013-08-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2227 | 2424 | 3.50 | 5 | -0.15 | 10 | -1.50 | |
| | Robinson, Darrian | | | 2024 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Wu, Christopher | | | 2183 | USA | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Lenderman, Aleksandr | g | | 2527 | USA | 0.00 | 1 | -0.36 | 10 | -3.60 | | | Otte, Marijn Willem | f | | 2207 | NED | 0.50 | 1 | -0.28 | 10 | -2.80 | | | Petesch, Gabriel N | | | 2196 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | * 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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