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Individual Calculations September 2011 |
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| Preotu, Razvan Total change: 3.75 | |   |
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| 2011 North American Youth Championship - U12 Open | Tarrytown, New York | USA | 2011-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1918 | 1974 | 0.00 | 1 | -0.58 | 15 | -8.70 | |
|  Shi, Jason | | | 1918 | USA | 0.00 | 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) | | | | 2011 CAN Youth Ch U12 Open | Richmond Hill, Ontario | CAN | 2011-07-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1887 | 1974 | 1.00 | 2 | -0.24 | 15 | -3.60 | |
|  Song, Edward | | | 1848 | CAN | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Cao, Jason | f | | 1925 | CAN | 0.50 | 1 | -0.07 | 15 | -1.05 | |
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) | | | | 48th Canadian Open Chess Championship 2011 | Toronto, Ontario | CAN | 2011-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2082 | 1974 | 4.00 | 8 | 1.07 | 15 | 16.05 | |
| | Thavandiran, Shiyam | f | | 2320 | CAN | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Pieri, Enzo | | | 1734 | ITA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Dougherty, Michael | f | | 2217 | CAN | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Barrios, Felix | | | 2202 | COL | 0.50 | 1 | 0.29 | 15 | 4.35 | | | Abrahams, Daniel | | | 2003 | CAN | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Sohal, Tanraj S | | | 2032 | CAN | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Itkin, David | | | 2025 | CAN | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Moffat, Andrei | | | 2120 | CAN | 1.00 | 1 | 0.70 | 15 | 10.50 | |
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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