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Individual Calculations February 2023 |
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| Yuan, Serena Total change: 34.80 | |   |
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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 |
| 1697 | 1477 | 1.50 | 3 | 0.82 | 40 | 32.80 | |
|  Wang, Rachel Zihan | | | 1592 | CAN | 0.50 | 1 | 0.16 | 40 | 6.40 | |  Baxter, Brent | | | 1736 | USA | 1.00 | 1 | 0.82 | 40 | 32.80 | | | Thongmee, Thomas | | | 1763 | USA | 0.00 | 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) | | | | 14th annual Golden State Open - U2100 Section | Concord, CA | USA | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1408 | 1477 | 3.00 | 5 | 0.05 | 40 | 2.00 | |
| | Mohan, Shankara | | | 1389 | USA | 0.50 | 1 | -0.12 | 40 | -4.80 | | | Selvam, Swagatha | | | 1220 | USA | 0.00 | 1 | -0.82 | 40 | -32.80 | | | Yi, Colin | | | 1373 | USA | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Xiao, Marina | | | 1435 | USA | 0.50 | 1 | -0.06 | 40 | -2.40 | | | Wu, Charles W | | | 1621 | CAN | 1.00 | 1 | 0.69 | 40 | 27.60 | |
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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