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Individual Calculations September 2014 |
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| Slack, David Total change: -5.20 | |   |
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| 4th Annual Potomac Open | Rockville, Maryland | USA | 2014-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2171 | 1902 | 1.50 | 4 | 0.74 | 20 | 14.80 | |
|  Nydick, Brandon | | | 2014 | USA | 0.50 | 1 | 0.15 | 20 | 3.00 | |  Barbosa, Oliver | g | | 2302 * | PHI | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Jones, Craig W | | | 2153 | USA | 1.00 | 1 | 0.81 | 20 | 16.20 | | | Samuelson, Andrew | | | 2214 | USA | 0.00 | 1 | -0.14 | 20 | -2.80 | | | * 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) | | | | 46th Annual Atlantic Open | Washington DC | USA | 2014-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2028 | 1902 | 0.00 | 3 | -1.00 | 20 | -20.00 | |
| | Abe, Mahiro | | | 2093 | JPN | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Paulina, David | | | 2031 | USA | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Aiken, Richard | | | 1961 | USA | 0.00 | 1 | -0.42 | 20 | -8.40 | |
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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