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Individual Calculations November 2021 |
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| Morgan, Jerry D Total change: -10.00 | |   |
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| Mechanics Institute Tuesday Night Marathon September-October 2021 - Under 1800 | San Francisco, California | USA | 2021-09-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1617 | 1485 | 1.00 | 2 | 0.29 | 20 | 5.80 | |
|  Casares, Nick | | | 1434 | USA | 1.00 | 1 | 0.43 | 20 | 8.60 | |  Porlares, Teodoro | | | 1800 | USA | 0.00 | 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) | | | | 2021 GM Walter Browne Marathon | Berkeley, California | USA | 2021-09-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1518 | 1485 | 2.00 | 6 | -0.79 | 20 | -15.80 | |
| | Dutter, Fredric | | | 1677 | USA | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Maser, Thomas F | | | 1752 | USA | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Ziebart, Jj | | | 1246 | USA | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Thibault, William | | | 1246 | USA | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Heidari, Ako | | | 1790 | IRI | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Nagel, Ralph | | | 1398 | USA | 1.00 | 1 | 0.38 | 20 | 7.60 | |
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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