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Individual Calculations April 2017 |
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| Gaffagan, Steven Total change: 14.40 | |   |
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| IM John Grefe Marathon | Berkeley, California | USA | 2017-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2136 | 1995 | 2.00 | 4 | 0.72 | 20 | 14.40 | |
|  Winslow, Elliott C | m | | 2233 | USA | 1.00 | 1 | 0.80 | 20 | 16.00 | |  Poehlmann, Roger M | | | 2198 | USA | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Walder, Michael S | | | 1997 | USA | 1.00 | 1 | 0.50 | 20 | 10.00 | | | O`connor, Derek | | | 2116 | USA | 0.00 | 1 | -0.34 | 20 | -6.80 | |
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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