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Individual Calculations July 2009 |
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| Sapozhnikov, Roman Total change: 23.70 | |   |
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| 2009 RA Spring Open | Ottawa | CAN | 2009-03-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2241 | 2131 | 2.00 | 3 | 0.92 | 15 | 13.80 | |
|  Doubleday, William G. | | | 2097 | CAN | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Samsonkin, Artiom | m | | 2378 | CAN | 0.00 | 1 | -0.19 | 15 | -2.85 | |  Pacey, Kevin | | | 2247 | CAN | 1.00 | 1 | 0.66 | 15 | 9.90 | |
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) | | | | 11th Annual Foxwoods Open | Mashantucket, Connecticut | USA | 2009-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2143 | 2152 | 4.00 | 8 | -0.09 | 15 | -1.35 | |
| | Raghunathan, Yoges | | | 1867 | USA | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Stopa, Jacek | m | | 2471 | POL | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Hanken, Jerome B | | | 1910 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Szuper, Paul | | | 2190 | USA | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Lowinger, Daniel L | | | 2064 | USA | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Vaja, Ashish | | | 2195 | USA | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Moon, Ryan Joseph | | | 2228 | USA | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Vertkin, Sergey | | | 2219 | RUS | 1.00 | 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) | | | | 2009 Ontario Open | Ottawa | CAN | 2009-05-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2218 | 2152 | 2.00 | 3 | 0.75 | 15 | 11.25 | |
| | Palsson, Halldor | | | 2094 | CAN | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Filipovich, David | | | 2181 | CAN | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Samsonkin, Artiom | m | | 2379 | CAN | 0.00 | 1 | -0.21 | 15 | -3.15 | |
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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