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Individual Calculations February 2015 |
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| Kelleher, William Total change: 1.70 | |   |
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| 2015 Portsmouth Open | Portsmouth, New Hampshire | USA | 2015-01-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1913 | 2305 | 2.00 | 2 | 0.17 | 10 | 1.70 | |
|  Henner, Peter | | | 1905 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Cohen, Lawrence S | | | 1920 | USA | 1.00 | 1 | 0.09 | 10 | 0.90 | | | * 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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