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Individual Calculations September 2023 |
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| Kingma, Karl Total change: 16.40 | |   |
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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 |
| 1497 | 1663 | 3.00 | 3 | 0.85 | 40 | 34.00 | |
|  Hack, Richard | | | 1425 | USA | 1.00 | 1 | 0.20 | 40 | 8.00 | |  Chan, John | | | 1491 | USA | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Dutter, Fredrick | | | 1574 | USA | 1.00 | 1 | 0.38 | 40 | 15.20 | |
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) | | | | 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 |
| 1576 | 1663 | 2.00 | 4 | -0.44 | 40 | -17.60 | |
| | Wong, Wilson | | | 1589 | USA | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Sanguinetti, George | | | 1740 | USA | 0.00 | 1 | -0.39 | 40 | -15.60 | | | Horde, Nicolas | | | 1411 | USA | 0.00 | 1 | -0.81 | 40 | -32.40 | | | Cooper, Lee | | | 1562 | USA | 1.00 | 1 | 0.36 | 40 | 14.40 | |
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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