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Individual Calculations May 2010 |
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| Helfst, Matt Total change: 0.00 | |   |
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| 2010 World Amateur Chess Championships | Skokie, Illinois | USA | 2010-03-19 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1834 | 0 | 1.00 | 4 | 0.00 | 1641 | | 0.00 | |
|  Desormes, Olivier | | | 1775 | FRA | 0.50 | 1 | 0.00 | | 0.00 | |  Villarreal, Brian | | | 1822 | USA | 0.50 | 1 | 0.00 | | 0.00 | | | Anu, Bayar | | | 1930 | MGL | 0.00 | 1 | 0.00 | | 0.00 | | | Musin, Azat | | | 1808 | RUS | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | Philadelphia Open | Philadelphia, Pennsylvania | USA | 2010-03-31 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2064 | 0 | 2.50 | 8 | 0.00 | 1923 | | 0.00 | |
| | Wang, Kevin | | | 2174 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Chan, Julian M | | | 2107 | USA | 0.50 | 1 | 0.00 | | 0.00 | | | Samimi, Sohrab | | | 2120 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Pamatmat, Jarod M | | | 2077 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Nieto, Guillermo Luigi | | | 1839 | COL | 1.00 | 1 | 0.00 | | 0.00 | | | Stancil, Kimani A | | | 2116 | USA | 0.50 | 1 | 0.00 | | 0.00 | | | Leve, Nitai D | | | 2108 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Hua, David | | | 1972 | USA | 0.50 | 1 | 0.00 | | 0.00 | |
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) | | | | Hartford Open | Windsor Locks, Connecticut | USA | 2010-04-16 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2123 | 0 | 0.50 | 3 | 0.00 | 1850 | | 0.00 | |
| | Daftani, Maraj | | | 2155 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Rozovsky, Daniel | f | | 2041 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Grasso, David | | | 2173 | USA | 0.50 | 1 | 0.00 | | 0.00 | |
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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