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Individual Calculations June 2023 |
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| Kozower, Ethan Total change: -30.40 | |   |
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| Marshall 2023 March-April Thursday Open Rounds 4-6 | New York, NY | USA | 2023-03-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1527 | 1787 | 1.00 | 1 | 0.18 | 40 | 7.20 | |
|  Walton, John | | | 1527 | USA | 1.00 | 1 | 0.18 | 40 | 7.20 | |
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) | | | | Marshall FIDE Monday April-May 2023 Rounds 1-2 | New York, NY | USA | 2023-04-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1808 | 1859 | 0.50 | 1 | -0.07 | 40 | -2.80 | |
|  Rudowski, Szymon | | | 1808 | USA | 0.50 | 1 | -0.07 | 40 | -2.80 | |
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) | | | | Marshall FIDE Monday April-May 2023 Rounds 3-6 | New York, NY | USA | 2023-05-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1901 | 1859 | 2.00 | 4 | 0.23 | 40 | 9.20 | |
| | Mbonu, David | | | 2004 | USA | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Klein, Ethan | | | 1932 | USA | 0.00 | 1 | -0.40 | 40 | -16.00 | | | Chamadia, Avaan | | | 1678 | USA | 1.00 | 1 | 0.26 | 40 | 10.40 | | | Miller, Rachel | c | wm | 1991 | JAM | 0.50 | 1 | 0.18 | 40 | 7.20 | |
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) | | | | 2023 May Marshall Premier | New York, NY | USA | 2023-05-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1973 | 1859 | 0.50 | 4 | -1.10 | 40 | -44.00 | |
| | Lapshun, Yury | m | | 2350 | USA | 0.00 | 1 | -0.04 | 40 | -1.60 | | | Dong, Kyle | | | 1832 | USA | 0.50 | 1 | -0.04 | 40 | -1.60 | | | Safranek, William | | | 1862 | USA | 0.00 | 1 | -0.50 | 40 | -20.00 | | | Chen, Derek Li | | | 1848 | USA | 0.00 | 1 | -0.52 | 40 | -20.80 | |
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) | | |
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