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Individual Calculations August 2021 |
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| Serrato, Rafael Total change: -75.80 | |   |
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| 14th Annual Philadelphia International - Expert | Philadelphia, Pennsylvania | USA | 2021-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1740 | 1793 | 1.50 | 6 | -1.78 | 20 | -35.60 | |
|  Chin, Spencer | | | 1716 | USA | 0.00 | 1 | -0.61 | 20 | -12.20 | |  Liu, Kelsey | | | 1488 | USA | 0.00 | 1 | -0.86 | 20 | -17.20 | | | Liu, Joshua | | | 1393 * | USA | 0.50 | 1 | -0.42 | 20 | -8.40 | | | Aggarwal, Vansh | | | 1922 | IND | 1.00 | 1 | 0.67 | 20 | 13.40 | | | Su, Kenneth | | | 1987 | USA | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Shawkat, Saif | | | 1934 | USA | 0.00 | 1 | -0.31 | 20 | -6.20 | | | * 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) | | | | 49th Annual World Open - Under 2000 | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1503 | 1793 | 0.50 | 3 | -2.01 | 20 | -40.20 | |
| | Yehoshua, Roi | | | 1519 | USA | 0.00 | 1 | -0.83 | 20 | -16.60 | | | Cobbs, Kenneth | | | 1409 | USA | 0.00 | 1 | -0.91 | 20 | -18.20 | | | Gupta, Sara Sachin | | | 1582 | USA | 0.50 | 1 | -0.27 | 20 | -5.40 | |
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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