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Individual Calculations December 2021 |
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| Perez, Robert M Total change: -16.00 | |   |
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| Marshall Premier November 2021 | New York, NY | USA | 2021-11-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2155 | 2378 | 3.50 | 5 | -0.15 | 20 | -3.00 | |
|  Oh, James Y | | | 1978 * | USA | 0.50 | 1 | -0.42 | 20 | -8.40 | |  Paciorkowski, Lev | | | 2328 | USA | 1.00 | 1 | 0.43 | 20 | 8.60 | | | Khamrakulov, Djurabek | g | | 2512 | UZB | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Mou, Iris | | wc | 1978 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Berg, George P | | | 1978 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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) | | | | 2021 New York GM Invitational B | New York, NY | USA | 2021-11-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2451 | 2378 | 3.00 | 9 | -0.65 | 20 | -13.00 | |
| | Rozman, Levy | m | | 2337 | USA | 0.00 | 1 | -0.56 | 20 | -11.20 | | | Korley, Kassa | m | | 2402 | DEN | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Shmelov, Denys K | m | | 2430 | UKR | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Jacobson, Brandon | g | | 2514 | USA | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Yoo, Christopher W | m | | 2499 | USA | 0.50 | 1 | 0.16 | 20 | 3.20 | | | Wang, Qibiao | | | 2364 | CHN | 0.00 | 1 | -0.52 | 20 | -10.40 | | | Barbosa, Oliver | g | | 2509 | PHI | 1.00 | 1 | 0.68 | 20 | 13.60 | | | Lenderman, Aleksandr | g | | 2624 | USA | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Wang, Kevin | m | | 2378 | USA | 0.50 | 1 | 0.00 | 20 | 0.00 | |
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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