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Individual Calculations September 2010 |
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| Ryba, Andrew Total change: 38.25 | |   |
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| 38th Annual World Open - Open Section | King of Prussia, Pennsylvania | USA | 2010-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2284 | 2094 | 3.50 | 8 | 1.39 | 15 | 20.85 | |
|  Hungaski, Robert A | m | | 2427 | USA | 0.00 | 1 | -0.12 | 15 | -1.80 | |  Melekhina, Alisa | | wm | 2265 | USA | 1.00 | 1 | 0.73 | 15 | 10.95 | | | Meszaros, Michal | m | | 2393 | SVK | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Perez, Robert M | | | 2212 | USA | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Henry, Liam | | | 2187 | CAN | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Castaneda, Nelson | f | | 2279 | USA | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Gulamali, Kazim | f | | 2357 | USA | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Smirnov, William J | | | 2152 | USA | 1.00 | 1 | 0.58 | 15 | 8.70 | |
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) | | | | 16th Annual Northeast Open | Stamford, Connecticut | USA | 2010-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2129 | 2119 | 3.00 | 5 | 0.57 | 15 | 8.55 | |
| | Ostrovskiy, Aleksandr | c | | 2257 | USA | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Chernin, Oliver | | | 2142 | USA | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Prilleltensky, Matt | | | 2096 | USA | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Rabin, Evan Z | | | 2016 | USA | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Rozovsky, Daniel | f | | 2132 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | |
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) | | | | 40th Annual Continental Open | Sturbridge, Massachusetts | USA | 2010-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2159 | 2119 | 2.00 | 3 | 0.59 | 15 | 8.85 | |
| | Kekelidze, Mikheil | g | | 2487 | GEO | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Winter, Curtis A | | | 1880 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Plotkin, David A | | | 2110 | USA | 1.00 | 1 | 0.49 | 15 | 7.35 | |
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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