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Individual Calculations September 2023 |
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| Kozower, Ethan Total change: -27.20 | |   |
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| June 2023 Marshall Premier | New York, NY | USA | 2023-06-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1915 | 1829 | 1.50 | 5 | -0.44 | 40 | -17.60 | |
|  Harriott, Tyrell | | | 1846 | USA | 0.00 | 1 | -0.48 | 40 | -19.20 | |  , , Nick Panico | | | 1970 | USA | 1.00 | 1 | 0.69 | 40 | 27.60 | | | Johnston, Daniel F | | | 2036 | USA | 0.50 | 1 | 0.27 | 40 | 10.80 | | | Tripodi, Matthew | | | 1779 | USA | 0.00 | 1 | -0.57 | 40 | -22.80 | | | Marsh, James | | | 1942 | USA | 0.00 | 1 | -0.35 | 40 | -14.00 | |
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) | | | | July 2023 Marshall Premier | New York, NY | USA | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1970 | 1914 | 1.50 | 3 | 0.08 | 40 | 3.20 | |
| | Rohde, Michael A | g | | 2340 | USA | 0.00 | 1 | -0.07 | 40 | -2.80 | | | Chin, Spencer | | | 1780 | USA | 0.50 | 1 | -0.18 | 40 | -7.20 | | | Tripodi, Matthew | | | 1791 | USA | 1.00 | 1 | 0.33 | 40 | 13.20 | |
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) | | | | July-August 2023 Marshall Monday Rounds 1-3 | New York, NY | USA | 2023-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1728 | 1914 | 1.50 | 3 | -0.59 | 40 | -23.60 | |
| | Nakada, Johji | | | 1514 * | USA | 0.50 | 1 | -0.42 | 40 | -16.80 | | | Ju, Alan | | | 1633 | USA | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Johnston, Daniel F | | | 2036 | USA | 0.00 | 1 | -0.33 | 40 | -13.20 | | | * 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) | | | | July-August 2023 Marshall Monday Rounds 4-6 | New York, NY | USA | 2023-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1737 | 1914 | 1.00 | 1 | 0.27 | 40 | 10.80 | |
| | Li, Robert | | | 1737 | CAN | 1.00 | 1 | 0.27 | 40 | 10.80 | |
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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