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Individual Calculations April 2018 |
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| Lesquillier, Walte Total change: -1.20 | |   |
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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 |
| 1676 | 1669 | 2.00 | 3 | 0.55 | 20 | 11.00 | |
|  Chea, Na | | | 1781 | USA | 1.00 | 1 | 0.65 | 20 | 13.00 | |  Bannan, Frank | | | 1820 | USA | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Hilliard, Michael | | | 1426 | USA | 1.00 | 1 | 0.20 | 20 | 4.00 | |
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) | | | | 2018 IM John Grefe Marathon | Berkeley, California | USA | 2018-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1671 | 1669 | 2.50 | 6 | -0.45 | 20 | -9.00 | |
| | Marrus, Matthew | | | 1269 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Walder, Michael | | | 1976 | USA | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Cortinas, Martin | | | 1612 | USA | 0.50 | 1 | -0.08 | 20 | -1.60 | | | Marino, Giano | | | 1555 | USA | 0.00 | 1 | -0.66 | 20 | -13.20 | | | Maser, Thomas | | | 1917 | USA | 1.00 | 1 | 0.81 | 20 | 16.20 | | | Aung, Grant | | | 1697 | USA | 0.00 | 1 | -0.46 | 20 | -9.20 | | | * 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 |
| 1956 | 1669 | 0.00 | 1 | -0.16 | 20 | -3.20 | |
| | Watson, Farid Mark | | | 1956 | USA | 0.00 | 1 | -0.16 | 20 | -3.20 | |
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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