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Individual Calculations June 2023 |
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| Szpisjak, Steven J Total change: -1.00 | |   |
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| 2023 Haymarket Memorial - Open | Chicago, IL | USA | 2023-04-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1790 | 1920 | 1.50 | 3 | -0.41 | 20 | -8.20 | |
|  Sax, Robert David | | | 1605 | USA | 1.00 | 1 | 0.14 | 20 | 2.80 | |  Kogen, Jonathan | | | 2200 | USA | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Shrigadi, Aryan | | | 1565 | USA | 0.50 | 1 | -0.39 | 20 | -7.80 | |
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 Illinois Senior | Schaumburg, IL | USA | 2023-05-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1898 | 1920 | 2.50 | 4 | 0.36 | 20 | 7.20 | |
| | Abbott, James | | | 1799 | USA | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Mazock, Michael J | | | 2206 | USA | 0.50 | 1 | 0.34 | 20 | 6.80 | | | Cohen, Fredric S | | | 1683 | USA | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Rhine, Frederick S | | | 1905 | USA | 0.50 | 1 | -0.02 | 20 | -0.40 | |
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) | | |
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