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Individual Calculations September 2023 |
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| Guo, Yanfeng Total change: -51.60 | |   |
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| 43rd Annual Lina Grumette Memorial | VAN NUYS, CA | USA | 2023-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1884 | 1654 | 0.50 | 3 | -0.17 | 40 | -6.80 | |
|  Hsiao, Ethan | | | 1947 | USA | 0.50 | 1 | 0.35 | 40 | 14.00 | |  Miller, Ike S | | | 1956 | USA | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Jou, Esther | | | 1748 | USA | 0.00 | 1 | -0.37 | 40 | -14.80 | |
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 David King Memorial Challenger 1 | Arcadia, CA | USA | 2023-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2149 | 2018 | 1.00 | 4 | -0.30 | 40 | -12.00 | |
| | Antonov, Vladimir | m | | 2160 | BUL | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Antonov, Vladimir | m | | 2160 | BUL | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Manakova, Maria | | wg | 2137 | SRB | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Manakova, Maria | | wg | 2137 | SRB | 0.50 | 1 | 0.16 | 40 | 6.40 | |
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 David King Memorial Challenger 5 | Arcadia, CA | USA | 2023-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2193 | 2111 | 1.50 | 6 | -0.82 | 40 | -32.80 | |
| | Cucancic, Sinisa | | | 2232 | CRO | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Cucancic, Sinisa | | | 2232 | CRO | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Manakova, Maria | | wg | 2137 | SRB | 0.00 | 1 | -0.46 | 40 | -18.40 | | | Manakova, Maria | | wg | 2137 | SRB | 0.50 | 1 | 0.04 | 40 | 1.60 | | | Doric, Nenad | m | | 2211 | CRO | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Doric, Nenad | m | | 2211 | CRO | 0.50 | 1 | 0.14 | 40 | 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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