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Individual Calculations September 2010 |
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| Ostrovskiy, Aleksandr Total change: -13.95 | |   |
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| 38th Annual World Open - U2400 Section | King of Prussia, Pennsylvania | USA | 2010-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2171 | 2254 | 6.00 | 9 | 0.52 | 15 | 7.80 | |
|  Markovits, Alex | | | 2102 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | |  Strenzwilk, Denis | | | 2003 | USA | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Williams, Justus D | | | 2239 | USA | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Zenyuk, Iryna | c | wm | 2276 | USA | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Williams, Chris | | | 2205 | USA | 0.00 | 1 | -0.57 | 15 | -8.55 | | | Bodek, Michael H | | | 2219 | USA | 0.50 | 1 | -0.05 | 15 | -0.75 | | | Margulis, Yevgeni | | | 2173 | USA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Wright, William B | | | 2174 | USA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Zepeda, Lorena M | | wm | 2152 | ESA | 1.00 | 1 | 0.36 | 15 | 5.40 | |
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) | | | | 2010 US Cadet Championship | Crossville, Tennessee | USA | 2010-07-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2159 | 2257 | 4.00 | 7 | -0.42 | 15 | -6.30 | |
| | Pamatmat, Jarod M | | | 2060 | USA | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Moon, Ryan Joseph | | | 2227 | USA | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Liou, Yian | | | 2211 | USA | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Yang, Michael | | | 2141 | USA | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Jayakumar, Adarsh | | | 2172 | USA | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Adelberg, David | | | 2216 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Shetty, Atulya A | | | 2086 | USA | 0.50 | 1 | -0.23 | 15 | -3.45 | |
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) | | | | 16th Annual Northeast Open | Stamford, Connecticut | USA | 2010-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2090 | 2257 | 1.50 | 4 | -1.38 | 15 | -20.70 | |
| | Ryba, Andrew | | | 2119 | USA | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Barsky, Sam A | | | 2072 | USA | 0.50 | 1 | -0.24 | 15 | -3.60 | | | Wu, Christopher | | | 2129 | USA | 0.00 | 1 | -0.67 | 15 | -10.05 | | | Chandran, Kapil | | | 2041 | USA | 0.50 | 1 | -0.28 | 15 | -4.20 | |
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) | | | | 40th Annual Continental Open | Sturbridge, Massachusetts | USA | 2010-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2240 | 2257 | 3.00 | 5 | 0.35 | 15 | 5.25 | |
| | Fan, Yun | | wf | 2048 | USA | 0.00 | 1 | -0.77 | 15 | -11.55 | | | Taylor, Steven A | | | 2212 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Aaron, Deepak | | | 2144 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Lenderman, Aleksandr | g | | 2553 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Krause, Benjamin W | | | 2241 | USA | 1.00 | 1 | 0.48 | 15 | 7.20 | |
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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