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Individual Calculations October 2023 |
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| Powers, Christopher Total change: -14.60 | |   |
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| 2023 Calchess Open Championship - B | Milpitas, California | USA | 2023-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1315 | 1669 | 2.00 | 4 | -1.57 | 20 | -31.40 | |
|  Cao, Daniel | | | 1291 | USA | 0.00 | 1 | -0.91 | 20 | -18.20 | | | Krishnan, Shreyank | | | 1389 | USA | 0.00 | 1 | -0.84 | 20 | -16.80 | |  Ramaswamy, Pudur | | | 1273 | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Yi, Colin | | | 1306 | USA | 1.00 | 1 | 0.10 | 20 | 2.00 | |
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) | | | | 2023 Fall Tuesday Night Marathon - 1600-1999 Round 1-4 | San Francisco, CA | USA | 2023-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1497 | 1669 | 3.00 | 3 | 0.84 | 20 | 16.80 | |
| | Uzakbaev, Nursultan | | | 1467 | USA | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Hack, Richard | | | 1444 | USA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Daily, Brian | | | 1580 | USA | 1.00 | 1 | 0.38 | 20 | 7.60 | |
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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