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Individual Calculations February 2023 |
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| Zhang, Sunny Total change: -26.40 | |   |
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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 |
| 1537 | 1707 | 3.00 | 5 | -0.50 | 40 | -20.00 | |
|  Cha, Justin | | | 1537 | USA | 0.00 | 1 | -0.72 | 40 | -28.80 | | | Ross, Joseph M | | | 1486 | USA | 1.00 | 1 | 0.22 | 40 | 8.80 | |  Saravanan, Sujan | | | 1543 | USA | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Srinivasan, Sivavishnu | | | 1307 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Solorio Valderrama, Noe | | | 1813 | FID | 0.00 | 1 | -0.36 | 40 | -14.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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 UTRGV Winter Chess Championship | Brownsville, TX | USA | 2023-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1680 | 1707 | 2.00 | 4 | -0.16 | 40 | -6.40 | |
| | Balderas, Adolfo Augusto, Jr | | | 1905 | MEX | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Saldivar, Felix, Jr | | | 1550 | USA | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Peredo, Ricardo | | | 1651 | USA | 0.50 | 1 | -0.08 | 40 | -3.20 | | | Huerta, Jonathan Christian | | | 1614 | USA | 0.50 | 1 | -0.13 | 40 | -5.20 | |
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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