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Individual Calculations April 2018 |
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| Cowgill, Jackie Total change: 35.80 | |   |
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| Winter 2018 Tuesday Night Marathon | San Francisco, California | USA | 2018-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1492 | 1159 | 3.00 | 8 | 1.93 | 20 | 38.60 | |
|  Abraham, Michael | | | 1559 * | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Stearman, Micah | | | 1287 | USA | 0.50 | 1 | 0.17 | 20 | 3.40 | | | Brown, Nicholas M | | | 1541 | USA | 0.50 | 1 | 0.41 | 20 | 8.20 | | | Cunningham, Charles | | | 1457 | USA | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Erdenebileg, Matthew | | | 1448 | USA | 1.00 | 1 | 0.84 | 20 | 16.80 | | | Starr, Albert | | | 1559 * | USA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Eastham, Asher | | | 1544 | USA | 0.00 | 1 | -0.09 | 20 | -1.80 | | | McLain, Julian | | | 1541 | USA | 1.00 | 1 | 0.91 | 20 | 18.20 | | | * 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) | | | | Cal Chess Senior State Championship | Berkeley, California | USA | 2018-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1472 | 1159 | 0.00 | 1 | -0.14 | 20 | -2.80 | |
| | Shaughnessy, Elizabeth | | | 1472 | IRL | 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) | | |
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