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Individual Calculations February 2023 |
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| Lu, Katherine Sunny Total change: -22.80 | |   |
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| 14th annual Golden State Open - U2100 Section | Concord, CA | USA | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1506 | 1412 | 1.00 | 4 | -0.57 | 40 | -22.80 | |
|  Gurovich, Roman | | | 1780 | USA | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Hu, Ruyi | | | 1199 | USA | 1.00 | 1 | 0.23 | 40 | 9.20 | | | Martinez, Lawrence | | | 1536 | USA | 0.00 | 1 | -0.33 | 40 | -13.20 | |  Guo, Ella | | | 1510 | 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) | | |
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