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Individual Calculations March 2017 |
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| Otterbach, Renate Total change: -4.60 | |   |
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| Winter 2017 Tuesday Night Marathon | San Francisco, California | USA | 2017-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1481 | 1267 | 2.00 | 6 | 0.46 | 20 | 9.20 | |
|  Cowgill, Jackie | | | 1187 | USA | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Kondakov, Adrian | | | 1667 * | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Lesquillier, Walter | | | 1667 * | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Eastham, Asher Dan | | | 1443 | USA | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Harris, Clarence | | | 1494 | USA | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Valente, Marty | | | 1426 | USA | 1.00 | 1 | 0.71 | 20 | 14.20 | | | * 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) | | | | 2017 CalChess Senior State Championship | Albany, California | USA | 2017-02-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1427 | 1267 | 0.00 | 2 | -0.69 | 20 | -13.80 | |
| | Kobernat, Alan E | | | 1667 * | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Cowgill, Jackie | | | 1187 | USA | 0.00 | 1 | -0.61 | 20 | -12.20 | | | * 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) | | |
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