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Individual Calculations February 2019 |
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| Boris, Peter Total change: 28.40 | |   |
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| 45th Annual Eastern Open | Tyson's Corner, Virginia | USA | 2018-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1996 | 1812 | 3.00 | 5 | 1.61 | 40 | 64.40 | |
|  Chiu, Isaac | | | 2150 | USA | 0.50 | 1 | 0.38 | 40 | 15.20 | |  Luo, Terry | | | 1958 | USA | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Hu, Emily | | | 1793 | USA | 1.00 | 1 | 0.47 | 40 | 18.80 | | | Luo, Ryan | | | 1987 | USA | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Jian, Alex | | | 2090 | USA | 0.50 | 1 | 0.33 | 40 | 13.20 | |
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) | | | | 51st Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2019-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1866 | 1812 | 0.50 | 3 | -0.90 | 40 | -36.00 | |
| | Shetty, Atulya | m | | 2212 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Samant, Neil | | | 1746 | USA | 0.00 | 1 | -0.59 | 40 | -23.60 | | | Prasanna, Gracy | | | 1640 | USA | 0.50 | 1 | -0.23 | 40 | -9.20 | | | * 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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