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Individual Calculations August 2023 |
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| Zhang, Brian Total change: -26.70 | |   |
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| PRAGUE INTERNATIONAL CHESS FESTIVAL 2023 - FIDE open | Prague | CZE | 2023-06-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1785 | 1821 | 3.50 | 8 | -0.74 | 30 | -22.20 | |
|  Ijzermans, Cees | | | 2124 | NED | 0.00 | 1 | -0.14 | 30 | -4.20 | |  Kolar, Edvard | | | 1531 | CZE | 1.00 | 1 | 0.16 | 30 | 4.80 | | | Fuchs, Dominik | | | 1986 | GER | 0.00 | 1 | -0.28 | 30 | -8.40 | | | Pang, Ethan | | | 1469 | ENG | 1.00 | 1 | 0.11 | 30 | 3.30 | | | Willim, Michael | | | 2142 | GER | 0.00 | 1 | -0.13 | 30 | -3.90 | | | Kukushkin, Ivan | | | 1421 * | LAT | 0.50 | 1 | -0.42 | 30 | -12.60 | | | Al Mutlaq, Ibrahim A | | | 1619 | KSA | 1.00 | 1 | 0.24 | 30 | 7.20 | | | Mina, Marco | | | 1985 | ITA | 0.00 | 1 | -0.28 | 30 | -8.40 | | | * 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) | | | | O pohar mesta Klatov 2023 - A | Klatovy | CZE | 2023-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2027 | 1966 | 3.00 | 8 | -0.43 | 30 | -12.90 | |
| | Hurdzan, Tomas | f | | 2309 | CZE | 0.00 | 1 | -0.12 | 30 | -3.60 | | | Simak, Roman | | | 1838 | CZE | 0.50 | 1 | -0.17 | 30 | -5.10 | | | Zadrapova, Amalie | | | 1787 | CZE | 1.00 | 1 | 0.27 | 30 | 8.10 | | | Dvorak, Jan | | | 2176 | CZE | 0.50 | 1 | 0.27 | 30 | 8.10 | | | Folk, Petr | | | 2131 | CZE | 0.00 | 1 | -0.28 | 30 | -8.40 | | | Skypala, Ondrej | | | 2163 | CZE | 0.00 | 1 | -0.25 | 30 | -7.50 | | | Hlavacek, Ondrej | | | 1780 | CZE | 1.00 | 1 | 0.26 | 30 | 7.80 | | | Folkova, Martina | | wf | 2030 | CZE | 0.00 | 1 | -0.41 | 30 | -12.30 | |
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) | | | | Flims Open 2023 | Flims | SUI | 2023-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2098 | 1966 | 1.50 | 3 | 0.52 | 30 | 15.60 | |
| | Boschetti, Claudio | | | 2003 | SUI | 1.00 | 1 | 0.55 | 30 | 16.50 | | | Borsos, Bogdan | m | | 2121 | UKR | 0.00 | 1 | -0.29 | 30 | -8.70 | | | Ziegler, Philipp | | | 2171 | GER | 0.50 | 1 | 0.26 | 30 | 7.80 | |
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 Youth Chess Championship - U14 Open | Calgary, Alberta | CAN | 2023-07-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1658 | 1966 | 3.00 | 4 | -0.24 | 30 | -7.20 | |
| | Leung, Wah Singh (joseph) | | | 1391 | CAN | 0.00 | 1 | -0.98 | 30 | -29.40 | | | Hong, Zihan | | | 1566 * | CAN | 1.00 | 1 | 0.08 | 30 | 2.40 | | | Wu, Jonathan | | | 1906 | CAN | 1.00 | 1 | 0.42 | 30 | 12.60 | | | Qian, Eric | | | 1768 | CAN | 1.00 | 1 | 0.24 | 30 | 7.20 | | | * 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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