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Individual Calculations February 2023 |
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| Wiebe, Isaac Total change: -15.00 | |   |
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| 11th annual Boston Chess Congress - Premier | Boston MA | USA | 2023-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2045 | 1988 | 2.00 | 5 | -0.31 | 20 | -6.20 | |
|  Zhou, Jianchao | g | | 2550 | CHN | 0.00 | 1 | -0.02 | 20 | -0.40 | |  Padhye, Rohan | | | 2111 | USA | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Theil, Carey | | | 2158 | USA | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Xu, Raymond | | | 1730 | USA | 0.50 | 1 | -0.32 | 20 | -6.40 | | | Zoffer, Oskar | | | 1678 | USA | 1.00 | 1 | 0.14 | 20 | 2.80 | |
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 RA Winter Open | Ottawa | CAN | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1909 | 1988 | 2.50 | 5 | -0.44 | 20 | -8.80 | |
| | Mahdjoubi, Abdelaziz | | | 1677 | CAN | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Chiku-Ratte, Olivier Kenta | m | | 2322 | CAN | 0.50 | 1 | 0.38 | 20 | 7.60 | | | Han, Johnathan | f | | 2181 | CAN | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Wang, Derek | | | 1688 | CAN | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Hadid, Mohammed | | | 1677 | CAN | 0.00 | 1 | -0.86 | 20 | -17.20 | |
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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