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Individual Calculations September 2023 |
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| Cooke, Grayson Total change: -26.40 | |   |
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| 2023 U.S. Junior Open Championship | Elmhurst, IL | USA | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1429 | 1673 | 1.00 | 4 | -1.94 | 40 | -77.60 | |
|  Kim, Matthew Yejun | | | 1282 | KOR | 0.50 | 1 | -0.41 | 40 | -16.40 | |  Lee, Daniel | | | 1957 | USA | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Cardozo, Brandon Anthony | | | 1205 | USA | 0.50 | 1 | -0.45 | 40 | -18.00 | | | Khanbutaev, Artemii | | | 1273 * | RUS | 0.00 | 1 | -0.92 | 40 | -36.80 | | | * 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) | | | | 55th annual Atlantic Open - U2100 | Reston, VA | USA | 2023-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1611 | 1673 | 3.50 | 4 | 1.28 | 40 | 51.20 | |
| | Huang, Lulu | | | 1273 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Fischer, Robert J | | | 1801 | USA | 1.00 | 1 | 0.67 | 40 | 26.80 | | | Kothapalli, Pradhyumna Kumar | | | 1784 | IND | 0.50 | 1 | 0.15 | 40 | 6.00 | | | Kaiser, Marshall Philip | | | 1585 | USA | 1.00 | 1 | 0.38 | 40 | 15.20 | | | * 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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