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Individual Calculations September 2023 |
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| Winslow, Elliott Total change: -43.00 | |   |
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| 2023 Calchess Senior Championship | Berkeley, Ca | USA | 2023-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1670 | 2025 | 2.50 | 4 | -1.02 | 20 | -20.40 | |
|  Mahooti, James J | | | 1589 | USA | 1.00 | 1 | 0.06 | 20 | 1.20 | |  Bridle, Sam | | | 1610 | USA | 0.00 | 1 | -0.93 | 20 | -18.60 | | | Vale Cruz, Armin | | | 1625 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Walder, Michael | | | 1854 | USA | 0.50 | 1 | -0.23 | 20 | -4.60 | | | * 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) | | | | WIM Ruth Haring Memorial Tuesday Night Marathon - Over 2000 Round 1-3 | San Francisco, CA | USA | 2023-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1798 | 2021 | 1.00 | 2 | -0.55 | 20 | -11.00 | |
| | Kagle, Sasha | | | 1883 | USA | 0.00 | 1 | -0.69 | 20 | -13.80 | | | Anderson, Michael | | | 1712 | USA | 1.00 | 1 | 0.14 | 20 | 2.80 | |
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 - Over 2000 Round 4-7 | San Francisco, CA | USA | 2023-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1804 | 2028 | 2.50 | 4 | -0.58 | 20 | -11.60 | |
| | Shrauger, Alex Hay | | | 1815 | USA | 0.00 | 1 | -0.77 | 20 | -15.40 | | | Vora, Yash Rathin | | | 1661 | USA | 0.50 | 1 | -0.40 | 20 | -8.00 | | | Hao, Max | | | 1831 | USA | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Wong, Russell | | | 1909 | USA | 1.00 | 1 | 0.34 | 20 | 6.80 | |
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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