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Individual Calculations September 2015 |
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| Zimmer, Ralph Total change: 9.60 | |   |
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| 5th Annual Potomac Open | Rockville, Maryland | USA | 2015-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2143 | 2230 | 3.50 | 5 | 0.48 | 20 | 9.60 | |
|  Karell, Leif K | | | 1956 | USA | 1.00 | 1 | 0.17 | 20 | 3.40 | |  Kaufman, Larry C | g | | 2317 | USA | 0.50 | 1 | 0.12 | 20 | 2.40 | | | Rao, Keshav | | | 1830 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Azarov, Sergei | g | | 2618 | BLR | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Davydov, Alexander | | | 1992 | USA | 1.00 | 1 | 0.20 | 20 | 4.00 | | | * 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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