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Individual Calculations September 2023 |
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| Zhang, Brian Total change: -71.92 | |   |
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| 2023 Canadian Open Chess Championship - Open | Calgary, Alberta | CAN | 2023-07-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1883 | 1966 | 5.00 | 10 | -1.11 | 31 | -34.41 | |
|  Bareev, Evgeny | g | | 2631 | CAN | 0.00 | 1 | -0.01 | 31 | -0.31 | |  Wharton, Kayode | | | 1760 | CAN | 0.00 | 1 | -0.76 | 31 | -23.56 | | | Gokhale, Tanishka | | | 1566 * | CAN | 1.00 | 1 | 0.08 | 31 | 2.48 | | | Wong, Ford | | | 1650 | CAN | 1.00 | 1 | 0.13 | 31 | 4.03 | | | Sazon, Omar | | | 1561 | CAN | 1.00 | 1 | 0.08 | 31 | 2.48 | | | Henry, Liam | | | 2050 | CAN | 0.00 | 1 | -0.38 | 31 | -11.78 | | | Wang, Chengjun Patrick | | | 1622 | CAN | 1.00 | 1 | 0.12 | 31 | 3.72 | | | Rekhson, Vladislav | | | 2069 | CAN | 0.50 | 1 | 0.14 | 31 | 4.34 | | | Wu, Jonathan | | | 1906 | CAN | 0.50 | 1 | -0.08 | 31 | -2.48 | | | Nguyen, Kim | | | 2015 | CAN | 0.00 | 1 | -0.43 | 31 | -13.33 | | | * 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) | | | | XXXIII Pan-American Youth Chess Festival - Under 14 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1617 | 1939 | 6.00 | 9 | -1.67 | 31 | -51.77 | |
| | Lopez Fuentes, Wilberth Sebastia | | | 1455 | MEX | 1.00 | 1 | 0.05 | 31 | 1.55 | | | Cuya Zevallos, Andrew Francisco | | | 1702 | PER | 0.00 | 1 | -0.80 | 31 | -24.80 | | | Leung, Wah Singh | | | 1493 | CAN | 0.50 | 1 | -0.44 | 31 | -13.64 | | | Wang, Andy Zixin | | | 1636 | CAN | 0.50 | 1 | -0.36 | 31 | -11.16 | | | Girish, Adarsh | | | 1539 * | USA | 1.00 | 1 | 0.08 | 31 | 2.48 | | | Colville, Julian | | | 1759 | USA | 0.00 | 1 | -0.74 | 31 | -22.94 | | | Perez Tangarife, Simon | | | 1522 | COL | 1.00 | 1 | 0.07 | 31 | 2.17 | | | Qian, Eric | | | 1646 | CAN | 1.00 | 1 | 0.15 | 31 | 4.65 | | | Miranda Fernandez, Marcos Manuel | | | 1802 | PAR | 1.00 | 1 | 0.32 | 31 | 9.92 | | | * 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) | | | | Hamilton 150th Anniversary Open | Hamilton | CAN | 2023-08-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1933 | 1939 | 2.00 | 3 | 0.46 | 31 | 14.26 | |
| | Abrahams, Daniel | | | 2127 | CAN | 1.00 | 1 | 0.74 | 31 | 22.94 | | | Wang, Derek | | | 1891 | CAN | 0.50 | 1 | -0.07 | 31 | -2.17 | | | Joseph, Jonath | | | 1781 | CAN | 0.50 | 1 | -0.21 | 31 | -6.51 | |
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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