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Individual Calculations October 2021 |
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| Willy, Stephen Total change: 51.20 | |   |
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| 2021 Howard Donnelly Memorial Championship - Under 2000 | San Francisco, California | USA | 2021-09-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1695 | 1623 | 2.50 | 3 | 1.28 | 40 | 51.20 | |
|  Parsons, Stephen | | | 1512 | USA | 1.00 | 1 | 0.35 | 40 | 14.00 | | | Alazawi, Samir | | | 1772 | USA | 0.50 | 1 | 0.20 | 40 | 8.00 | |  Porlares, Teodoro | | | 1800 | USA | 1.00 | 1 | 0.73 | 40 | 29.20 | |
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) | | |
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