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Individual Calculations April 2020 |
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| Trestor, David J Total change: -31.60 | |   |
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| GM Koltanowski Marathon 2020 | Berkeley, California | USA | 2020-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1585 | 1627 | 1.00 | 3 | -0.66 | 40 | -26.40 | |
|  Lemkin, Ben | | | 1524 | USA | 1.00 | 1 | 0.36 | 40 | 14.40 | |  Soltani, Mohammad | | | 1450 | USA | 0.00 | 1 | -0.73 | 40 | -29.20 | | | Svoboda, Steven | | | 1781 | USA | 0.00 | 1 | -0.29 | 40 | -11.60 | |
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) | | | | Berkeley Senior Championship 2020 | Berkeley, California | USA | 2020-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1933 | 1612 | 0.00 | 1 | -0.13 | 40 | -5.20 | |
| | Walder, Michael | | | 1933 | USA | 0.00 | 1 | -0.13 | 40 | -5.20 | |
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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