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Individual Calculations February 2023 |
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| Ma, Matthew Total change: 24.40 | |   |
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| 32nd annual North American Open - U2100 | Paradise, Nevada | USA | 2022-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1508 | 1044 | 0.00 | 5 | -0.27 | 40 | -10.80 | |
|  Jiang, Mathew | | | 1540 | USA | 0.00 | 1 | -0.04 | 40 | -1.60 | |  Zhou, Ivan | | | 1580 | USA | 0.00 | 1 | -0.03 | 40 | -1.20 | | | Mei, Ethan R | | | 1486 | USA | 0.00 | 1 | -0.06 | 40 | -2.40 | | | Xiao, Marina | | | 1426 | USA | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Guo, Ella | | | 1510 | USA | 0.00 | 1 | -0.05 | 40 | -2.00 | |
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) | | | | 14th annual Golden State Open - U2100 Section | Concord, CA | USA | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1551 | 1044 | 1.00 | 3 | 0.88 | 40 | 35.20 | |
| | Vale Cruz, Armin | | | 1532 | USA | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Zhuge, Katherine | | | 1500 | USA | 1.00 | 1 | 0.94 | 40 | 37.60 | | | Wu, Charles W | | | 1621 | CAN | 0.00 | 1 | -0.02 | 40 | -0.80 | |
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) | | |
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