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Individual Calculations September 2009 |
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| Rosenberg, Evan S Total change: 67.95 | |   |
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| 37th Annual World Open - Under 2400 Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2243 | 2155 | 6.00 | 9 | 2.58 | 15 | 38.70 | |
|  Rogers, Norman | f | | 2240 | USA | 0.50 | 1 | 0.12 | 15 | 1.80 | |  Treger, Yefim | | | 2185 | USA | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Mabe, Chris J | | | 2214 | USA | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Yanayt, Eugene | f | | 2207 | USA | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Cooke, Eric N | | | 2204 | USA | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Rodriguez, Eric | | | 2247 | USA | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Taylor, Timothy W | m | | 2349 | USA | 0.50 | 1 | 0.25 | 15 | 3.75 | | | Adamson, Robby | f | | 2302 | USA | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Barnett, Alexander | | | 2239 | USA | 0.50 | 1 | 0.12 | 15 | 1.80 | |
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) | | | | 39th Annual Continental Open | Sturbridge, Massachusetts | USA | 2009-08-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2316 | 2140 | 3.50 | 5 | 1.95 | 15 | 29.25 | |
| | Kacheishvili, Giorgi | g | | 2540 * | GEO | 0.50 | 1 | 0.42 | 15 | 6.30 | | | Mac Intyre, Paul | f | | 2292 | USA | 1.00 | 1 | 0.70 | 15 | 10.50 | | | Meredith, Matthew | | | 2020 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Theil, Carey M | | | 2199 | USA | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Ivanov, Alexander | g | | 2527 | USA | 0.00 | 1 | -0.09 | 15 | -1.35 | | | * 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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