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Individual Calculations August 2023 |
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| Campbell, Joshua A Total change: -163.20 | |   |
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| 2nd annual World Open Amateur | Philadelphia, PA | USA | 2023-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1704 | 1951 | 4.50 | 6 | -0.20 | 40 | -8.00 | |
|  Wu, Eliot S | | | 1551 * | USA | 0.00 | 1 | -0.92 | 40 | -36.80 | |  Budow, Sarah | | | 1679 | USA | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Chen, Alan Zishun | | | 1575 | USA | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Han, Xuqian Ben | | | 1663 | HKG | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Su, Kenneth | | | 1855 | USA | 1.00 | 1 | 0.37 | 40 | 14.80 | | | Nair, Ajitesh | | | 1902 | USA | 0.50 | 1 | -0.07 | 40 | -2.80 | | | * 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 |
| 1631 | 1951 | 4.00 | 9 | -3.48 | 40 | -139.20 | |
| | Chitnis, Shirish R | | | 1551 * | USA | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Yadawad, Ansh | | | 1781 | USA | 0.00 | 1 | -0.72 | 40 | -28.80 | | | Tineo, Brian Jerem | | | 2058 | DOM | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Chen, Alan Zishun | | | 1575 | USA | 0.00 | 1 | -0.91 | 40 | -36.40 | | | Amin, Tariq M | | | 1486 | USA | 1.00 | 1 | 0.05 | 40 | 2.00 | | | Zou, Andrew | | | 1582 | USA | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Han, Xuqian Ben | | | 1663 | HKG | 0.00 | 1 | -0.84 | 40 | -33.60 | | | Hoffman, Jesse N | | | 1497 | USA | 0.00 | 1 | -0.94 | 40 | -37.60 | | | Pan, Zachary | | | 1484 | USA | 1.00 | 1 | 0.05 | 40 | 2.00 | | | * 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) | | | | 16th annual Chicago Class - Class A | Wheeling, IL | USA | 2023-07-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1579 | 1951 | 0.50 | 1 | -0.40 | 40 | -16.00 | |
| | Obrien, Bret Thomas | | | 1579 | USA | 0.50 | 1 | -0.40 | 40 | -16.00 | |
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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