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Individual Calculations September 2023 |
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| Chan, John Total change: -36.40 | |   |
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| WIM Ruth Haring Memorial Tuesday Night Marathon - 1600 to 1999 Round 1-3 | San Francisco, CA | USA | 2023-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1525 | 1491 | 1.00 | 3 | -0.36 | 20 | -7.20 | |
|  Cooper, Lee | | | 1562 | USA | 1.00 | 1 | 0.60 | 20 | 12.00 | |  Kingma, Karl | | | 1663 | USA | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Yu, Prescott | | | 1351 | USA | 0.00 | 1 | -0.69 | 20 | -13.80 | |
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) | | | | WIM Ruth Haring Memorial Tuesday Night Marathon - 1600 to 1999 Round 4-7 | San Francisco, CA | USA | 2023-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1501 | 1491 | 0.00 | 3 | -1.46 | 20 | -29.20 | |
| | Lamstein, Joshua | | | 1588 | USA | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Krayushkin, Igor | | | 1456 | USA | 0.00 | 1 | -0.55 | 20 | -11.00 | | | Uzakbaev, Nursultan | | | 1459 | USA | 0.00 | 1 | -0.54 | 20 | -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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