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Individual Calculations September 2023 |
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| Henderson-Jr, Se Total change: -60.00 | |   |
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| 2023 Calchess Senior Championship | Berkeley, Ca | USA | 2023-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1518 | 1489 | 1.00 | 4 | -0.86 | 20 | -17.20 | |
|  Del Rosario, Frisco | | | 1708 | USA | 0.00 | 1 | -0.22 | 20 | -4.40 | | | Katz, Stewart | | | 1597 | USA | 0.00 | 1 | -0.35 | 20 | -7.00 | |  Soltani, Mohammad | | | 1339 | USA | 0.00 | 1 | -0.70 | 20 | -14.00 | | | Shaughnessy, Elizabeth Carmel | | | 1427 | IRL | 1.00 | 1 | 0.41 | 20 | 8.20 | |
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 1-3 | San Francisco, CA | USA | 2023-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1352 | 1489 | 0.50 | 3 | -1.55 | 20 | -31.00 | |
| | Horde, Nicolas | | | 1411 | USA | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Casares Jr., Nick | | | 1304 | USA | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Rex, Tobiah | | | 1342 | USA | 0.00 | 1 | -0.70 | 20 | -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) | | | | 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 |
| 1464 | 1489 | 1.00 | 3 | -0.59 | 20 | -11.80 | |
| | Cooper, Lee | | | 1562 | USA | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Hule, Pratyush | | | 1327 | USA | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Macnee, Felix | | | 1503 | USA | 0.00 | 1 | -0.48 | 20 | -9.60 | |
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) | | |
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