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Individual Calculations August 2023 |
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| Willy, Stephen Total change: -114.40 | |   |
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| 2nd annual World Open Amateur | Philadelphia, PA | USA | 2023-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1866 | 2273 | 1.00 | 3 | -1.77 | 40 | -70.80 | |
|  Klein, Jack | | | 1865 | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Carey, Michael P | | | 1860 | USA | 0.00 | 1 | -0.93 | 40 | -37.20 | | | Stevens, Adam Benjamin | | | 1873 * | USA | 0.00 | 1 | -0.92 | 40 | -36.80 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 51st annual World Open - U2200 | Philadelphia, PA | USA | 2023-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1876 | 2273 | 2.50 | 4 | -1.09 | 40 | -43.60 | |
| | Carlson, Joaquin A | | | 1866 | USA | 0.00 | 1 | -0.92 | 40 | -36.80 | | | Zheng, Lerui | | | 1873 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Dedona, Mark | | | 1707 | USA | 1.00 | 1 | 0.02 | 40 | 0.80 | | | Tineo, Brian Jerem | | | 2058 | DOM | 0.50 | 1 | -0.27 | 40 | -10.80 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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