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Individual Calculations July 2023 |
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| Posthuma, Joshua Total change: -13.70 | |   |
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| 32nd annual Chicago Open - Open Section | Wheeling, IL | USA | 2023-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2175 | 2457 | 5.50 | 9 | -1.89 | 10 | -18.90 | |
|  Lopez, Mauro Alberto | | | 2045 | MEX | 0.00 | 1 | -0.93 | 10 | -9.30 | |  Wofford, Matthew | | | 2057 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Wiebe, Isaac | | | 2006 | CAN | 1.00 | 1 | 0.06 | 10 | 0.60 | | | Lin, Dachey | f | | 2299 | USA | 0.50 | 1 | -0.21 | 10 | -2.10 | | | Adewumi, Tanitoluwa | f | | 2283 | USA | 0.50 | 1 | -0.23 | 10 | -2.30 | | | Amburgy, Ryan | f | | 2246 | USA | 0.00 | 1 | -0.77 | 10 | -7.70 | | | Atwell, Rose | | | 2108 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Ladan, Nicholas | | | 2228 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Liu, Eric Chang | c | | 2299 | USA | 0.50 | 1 | -0.21 | 10 | -2.10 | | | * 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) | | | | 2023 Canadian Transnational Classic Crown | Montreal | CAN | 2023-06-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2453 | 2457 | 5.00 | 9 | 0.52 | 10 | 5.20 | |
| | Golubeva, Oksana | | wf | 2179 | CAN | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Almeida Quintana, Omar | g | | 2520 | CUB | 0.50 | 1 | 0.09 | 10 | 0.90 | | | Matviishen, Viktor | g | | 2538 | UKR | 0.00 | 1 | -0.39 | 10 | -3.90 | | | Hua, Eugene | f | | 2275 | CAN | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Lenderman, Alexandr | g | | 2566 | USA | 0.50 | 1 | 0.15 | 10 | 1.50 | | | Bruzon Batista, Lazaro | g | | 2617 | USA | 0.50 | 1 | 0.21 | 10 | 2.10 | | | Neiksans, Arturs | g | | 2605 | LAT | 0.00 | 1 | -0.30 | 10 | -3.00 | | | Cervantes-Landeiro, Thalia | f | wg | 2271 | USA | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Szabo, Gergely-Andras-Gyula | g | | 2504 | ROU | 0.50 | 1 | 0.07 | 10 | 0.70 | |
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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