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Individual Calculations September 2011 |
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| Perez, Robert M Total change: 74.40 | |   |
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| 8th Annual Philadelphia International | Philadelphia, Pennsylvania | USA | 2011-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2299 | 2239 | 5.50 | 9 | 1.71 | 15 | 25.65 | |
|  Shabalov, Alexander | g | | 2586 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Nieto, Manuel G | | | 1886 | COL | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Ikeda, Junta | f | | 2315 | AUS | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Aaron, Deepak | | | 2288 | USA | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Gorman, Dov | f | | 2323 | USA | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Ly, Moulthun | f | | 2375 | AUS | 0.50 | 1 | 0.18 | 15 | 2.70 | | | Heinis, Vincent | | | 2124 | FRA | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Adu, Oladapo O | m | | 2295 | NGR | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Gerzhoy, Leonid | m | | 2496 | CAN | 0.00 | 1 | -0.18 | 15 | -2.70 | |
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 World Open - U2400 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2223 | 2239 | 7.00 | 8 | 2.85 | 15 | 42.75 | |
| | Collier, Philip M | | | 2002 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Wright, William B | | | 2137 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Kleinman, Michael | | | 2195 | CAN | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Nikolayev, Igor | f | | 2318 | USA | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Ardaman, Miles F | f | | 2301 | USA | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Ostrovskiy, Aleksandr | f | | 2267 | USA | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Maltese, Adam S | | | 2240 | USA | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Rodriguez, Eric O | f | | 2321 | USA | 0.50 | 1 | 0.11 | 15 | 1.65 | |
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) | | | | 4th Summer Solstice Open | Fort Lauderdale, Florida | USA | 2011-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2097 | 2210 | 0.50 | 2 | -0.81 | 15 | -12.15 | |
| | Goss, Mel H | | | 2084 | USA | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Heung, Christopher | | | 2109 | USA | 0.00 | 1 | -0.64 | 15 | -9.60 | |
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) | | | | 112th Annual US Open | Orlando, Florida | USA | 2011-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2190 | 2210 | 5.50 | 8 | 1.21 | 15 | 18.15 | |
| | Meduri, Aakaash | | | 2068 | USA | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Karas, Nicholas | | | 2142 | USA | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Esserman, Marc R | m | | 2453 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Suich, Peter | | | 2149 | USA | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Lenderman, Aleksandr | g | | 2525 | USA | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Mathys Jr, David A | | | 2005 | USA | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Holroyd, Kenneth J | | | 2099 | USA | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Veksler, Boris | | | 2079 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | |
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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