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Individual Calculations October 2021 |
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| Morgan, Jerry Total change: -18.00 | |   |
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| 2021 IM John Grefe Marathon | Berkeley, California | USA | 2021-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1491 | 1480 | 1.50 | 5 | -0.90 | 20 | -18.00 | |
|  Thibault, William | | | 1249 | USA | 1.00 | 1 | 0.21 | 20 | 4.20 | |  Paetz, Mark | | | 1562 | USA | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Lemkin, Ben | | | 1614 | USA | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Boyd, Tom | | | 1429 | USA | 0.50 | 1 | -0.07 | 20 | -1.40 | | | Sherwood, Peter | | | 1603 | USA | 0.00 | 1 | -0.33 | 20 | -6.60 | |
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) | | |
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