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Individual Calculations January 2023 |
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| Zhou, Ivan Total change: -40.00 | |   |
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| 57th American Open - Under 2200 | Orange, CA | USA | 2022-11-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1517 | 1580 | 3.00 | 8 | -1.66 | 40 | -66.40 | |
|  Hao, Max | | | 1710 | USA | 0.00 | 1 | -0.32 | 40 | -12.80 | |  Wang, Leo Q | | | 1580 | USA | 0.00 | 1 | -0.50 | 40 | -20.00 | | | Arutla, Siddharth | | | 1402 | USA | 0.50 | 1 | -0.23 | 40 | -9.20 | | | Indukuri, Suhas Varma | | | 1463 | USA | 0.50 | 1 | -0.16 | 40 | -6.40 | | | Wang, Jacob S | | | 1529 | USA | 1.00 | 1 | 0.43 | 40 | 17.20 | | | Tang, Benjamin Benchen | | | 1615 | USA | 0.00 | 1 | -0.45 | 40 | -18.00 | | | Fan, Shengjie | | | 1413 | USA | 0.00 | 1 | -0.72 | 40 | -28.80 | | | Hsiao, Oliver | | | 1425 | USA | 1.00 | 1 | 0.29 | 40 | 11.60 | |
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) | | | | 4th Annual Donaldson Championship - 2000 and up | San Francisco, California | USA | 2022-12-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1760 | 1580 | 1.50 | 3 | 0.66 | 40 | 26.40 | |
| | Biyiasas, Theodore | | | 1910 | USA | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Katz, Stewart | | | 1731 | USA | 1.00 | 1 | 0.70 | 40 | 28.00 | | | Videna, Daniel Tuapen | | | 1638 | USA | 0.50 | 1 | 0.08 | 40 | 3.20 | |
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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