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Individual Calculations September 2023 |
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| Hack, Richard Total change: 18.80 | |   |
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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 |
| 1613 | 1425 | 1.00 | 2 | 0.48 | 20 | 9.60 | |
|  Kingma, Karl | | | 1663 | USA | 0.00 | 1 | -0.20 | 20 | -4.00 | |  Cooper, Lee | | | 1562 | USA | 1.00 | 1 | 0.68 | 20 | 13.60 | |
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 |
| 1533 | 1425 | 2.00 | 4 | 0.46 | 20 | 9.20 | |
| | Rex, Tobiah | | | 1342 | USA | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Powers, Christopher | | | 1648 | USA | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Ren, Jocelyn | | | 1344 | USA | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Smith, Robert | | | 1797 | USA | 1.00 | 1 | 0.90 | 20 | 18.00 | |
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) | | |
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