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Individual Calculations September 2011 |
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| Adu, Oladapo O Total change: -25.80 | |   |
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| 8th Annual Philadelphia International | Philadelphia, Pennsylvania | USA | 2011-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2255 | 2295 | 5.00 | 9 | 0.18 | 15 | 2.70 | |
|  Vazquez Maccarini, Danitza F | | wf | 1895 * | PUR | 1.00 | 1 | 0.08 | 15 | 1.20 | |  Bartell, Thomas | f | | 2352 | USA | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Obiamiwe, Paul E | | | 2010 | NGR | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Gorman, Dov | f | | 2323 | USA | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Kojima, Shinya | f | | 2328 | JPN | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Romanenko, Vladimir | m | | 2467 | BLR | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Ly, Moulthun | f | | 2375 | AUS | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Perez, Robert M | | | 2239 | USA | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Melekhina, Alisa | f | wm | 2304 | USA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | * 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) | | | | 39th Annual World Open - U2400 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2194 | 2295 | 7.00 | 9 | 1.33 | 15 | 19.95 | |
| | Murthy, Pappu L N | | | 2112 | USA | 0.50 | 1 | -0.24 | 15 | -3.60 | | | Strenzwilk, Denis | | | 2027 | USA | 0.50 | 1 | -0.33 | 15 | -4.95 | | | Black Jr, James A | | | 2094 | USA | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Iwu, Okechukwu A | | | 2158 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Jones, Craig W | | | 2244 | USA | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Cherniack, Alex | | | 2249 | USA | 0.50 | 1 | -0.06 | 15 | -0.90 | | | Ardaman, Miles F | f | | 2301 | USA | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Inants, Aghasi | | | 2290 | ARM | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Khamroev, Ravshan | | | 2275 | UZB | 1.00 | 1 | 0.47 | 15 | 7.05 | |
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) | | | | 38th Lipkin/ Pfefferkorn Open | Greensboro, North Carolina | USA | 2011-07-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2248 | 2276 | 1.00 | 3 | -0.59 | 15 | -8.85 | |
| | Ardaman, Miles F | f | | 2301 | USA | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Battaglini, Gabrie | m | | 2407 | FRA | 0.50 | 1 | 0.18 | 15 | 2.70 | | | Timmel, John | | | 2037 | USA | 0.00 | 1 | -0.80 | 15 | -12.00 | |
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) | | | | 2nd Annual Fairfax Open | Fairfax, Virginia | USA | 2011-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2047 | 2276 | 0.00 | 1 | -0.79 | 15 | -11.85 | |
| | Yang, Charles | | | 2047 | USA | 0.00 | 1 | -0.79 | 15 | -11.85 | |
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) | | | | 2011 Potomac Open | Rockville, Maryland | USA | 2011-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2330 | 2276 | 0.00 | 2 | -0.86 | 15 | -12.90 | |
| | Kekelidze, Mikheil | g | | 2452 | GEO | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Finol, David E | f | | 2208 | VEN | 0.00 | 1 | -0.59 | 15 | -8.85 | |
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) | | | | 2011 Manhattan Open - Open Section | New York, New York | USA | 2011-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2280 | 2276 | 1.00 | 4 | -0.99 | 15 | -14.85 | |
| | Lenderman, Aleksandr | g | | 2525 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Atanasiu, Nicolae | | | 2007 | BEL | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Benjamin, Joel | g | | 2553 | USA | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Kovalchuk, Igor | | | 2034 | UKR | 0.00 | 1 | -0.80 | 15 | -12.00 | |
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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