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Individual Calculations August 2021 |
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| Starkman, Eric Total change: -12.00 | |   |
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| 49th Annual World Open - Under 2200 | Philadelphia, Pennsylvania | USA | 2021-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1744 | 1791 | 5.00 | 7 | 1.08 | 20 | 21.60 | |
|  Kumar, Sanjay | | | 1391 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Radutman, Felix | | | 2108 | USA | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Samani, Amin Daniel | | | 1719 | USA | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Harrison, Joshua Alan | | | 2103 | USA | 1.00 | 1 | 0.86 | 20 | 17.20 | | | Cardinal, Scott Matthew | | | 1702 | USA | 0.00 | 1 | -0.62 | 20 | -12.40 | | | Kozower, Ethan | | | 1574 | USA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Coy, Matthew Miller | | | 1614 | USA | 1.00 | 1 | 0.27 | 20 | 5.40 | | | * 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) | | | | 14th Annual Chicago Class - Expert | Wheeling, Illinois | USA | 2021-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1659 | 1791 | 1.00 | 4 | -1.68 | 20 | -33.60 | |
| | Garrett, Daniel Zachary | | | 1782 | USA | 0.00 | 1 | -0.51 | 20 | -10.20 | | | George, Isaac | | | 1561 | USA | 0.00 | 1 | -0.79 | 20 | -15.80 | | | Wang, Ryan R | | | 1722 | USA | 0.50 | 1 | -0.10 | 20 | -2.00 | | | Mu, Grant | | | 1569 | USA | 0.50 | 1 | -0.28 | 20 | -5.60 | |
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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