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Individual Calculations July 2009 |
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| Doubleday, William G. Total change: 12.70 | |   |
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| 2009 RA Winter Open | Ottawa | CAN | 2009-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2319 | 2097 | 1.00 | 3 | 0.28 | 25 | 7.00 | |
|  Sambuev, Bator | g | | 2447 | RUS | 1.00 | 1 | 0.89 | 25 | 22.25 | | | Samsonkin, Artiom | m | | 2378 | CAN | 0.00 | 1 | -0.16 | 25 | -4.00 | |  Moffat, Andrei | | | 2131 | CAN | 0.00 | 1 | -0.45 | 25 | -11.25 | |
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) | | | NOTE: K factor changed | | 2009 RA Spring Open | Ottawa | CAN | 2009-03-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2189 | 2097 | 0.50 | 2 | -0.25 | 15 | -3.75 | |
| | Sapozhnikov, Roman | | | 2131 | CAN | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Pacey, Kevin | | | 2247 | CAN | 0.50 | 1 | 0.20 | 15 | 3.00 | |
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) | | | NOTE: K factor changed | | 2009 Ontario Open | Ottawa | CAN | 2009-05-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2292 | 2097 | 2.00 | 5 | 0.63 | 15 | 9.45 | |
| | Gerzhoy, Leonid | m | | 2420 | CAN | 0.50 | 1 | 0.37 | 15 | 5.55 | | | Samsonkin, Artiom | m | | 2379 | CAN | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Wight, Keith | | | 2030 | CAN | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Davies, Alex | f | | 2186 | CAN | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Sambuev, Bator | g | | 2447 | RUS | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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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