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Individual Calculations September 2023 |
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| Ostrovisky, Alex Total change: 1.60 | |   |
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| June 2023 Marshall Premier | New York, NY | USA | 2023-06-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2089 | 2379 | 4.00 | 5 | 0.00 | 10 | 0.00 | |
|  Marsh, James | | | 1942 | USA | 0.50 | 1 | -0.44 | 10 | -4.40 | |  Underwood, Toshinori | | | 1979 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Ho, Carter | | | 1917 | USA | 1.00 | 1 | 0.05 | 10 | 0.50 | | | Bortnyk, Mykola | m | | 2427 | UKR | 0.50 | 1 | 0.07 | 10 | 0.70 | | | Moor, Nathaniel | | | 2180 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | * 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 1000GM July Scheveningen IM Norm #3 | Sunnyvale, CA | USA | 2023-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2282 | 2356 | 5.50 | 9 | 0.16 | 10 | 1.60 | |
| | Yu, Jiangwei | | | 2261 | CHN | 0.50 | 1 | -0.13 | 10 | -1.30 | | | Shivakumar, Shawnak | f | | 2387 | USA | 0.00 | 1 | -0.46 | 10 | -4.60 | | | Tang, Dylan | | | 2093 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Rajaram, Rohan | c | | 2168 | USA | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Sathish, Pranav | f | | 2448 | USA | 1.00 | 1 | 0.63 | 10 | 6.30 | | | Wang, Isaac | | | 2353 | USA | 0.50 | 1 | 0.00 | 10 | 0.00 | | | Nathan, Nitish | c | | 2179 | USA | 0.50 | 1 | -0.23 | 10 | -2.30 | | | Jiang, Lucas | | | 2325 | USA | 1.00 | 1 | 0.46 | 10 | 4.60 | | | Guo, Andrew | f | | 2321 | USA | 0.00 | 1 | -0.55 | 10 | -5.50 | |
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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