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Individual Calculations September 2021 |
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| Guo, Andrew Total change: 27.60 | |   |
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| Mechanics Institute Tuesday Night Marathon July-August 2021 - Open | San Francisco, California | USA | 2021-07-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1816 | 1678 | 2.50 | 6 | 0.49 | 40 | 19.60 | |
|  Penagalapati, Abhi | | | 1896 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | |  Zhou, Chelsea | | | 1525 | USA | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Bambou, Christophe | | | 2078 * | FRA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Heidari, Ako | | | 1766 | IRI | 0.00 | 1 | -0.38 | 40 | -15.20 | | | Persidsky, Andre | | | 1785 | USA | 0.50 | 1 | 0.15 | 40 | 6.00 | | | Argo, Guy | | | 1845 | USA | 1.00 | 1 | 0.72 | 40 | 28.80 | | | * 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) | | | | 11th Annual Central California Open - Open | Fresno, California | USA | 2021-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1791 | 1674 | 2.00 | 5 | 0.20 | 40 | 8.00 | |
| | Ai, Evan Zihao | | | 1869 | USA | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Meiyappan, Annapoorni | | wf | 1686 | USA | 1.00 | 1 | 0.52 | 40 | 20.80 | | | Chubakov, Sultan | | | 2022 | KGZ | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Mahesh, Tejas | | | 1823 | USA | 0.00 | 1 | -0.30 | 40 | -12.00 | | | Arutla, Aditya | | | 1555 | USA | 1.00 | 1 | 0.34 | 40 | 13.60 | |
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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